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# 3COM CORPORATION
US ROBOTICS NETSERVER I-MODEM/16
Card Type Modem (asynchronous)
Chip Set Unidentified
Maximum Modem Rate 33.6Kbps
Maximum Fax Rate 14.4Kbps
Data Modulation Protocol Unidentified
Fax Modulation Protocol Unidentified
Error Correction/Compression Unidentified
Fax Class Class I & II
Data Bus External
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|------------------------------------------------------------|
| DC power | CN1 | RJ-45 jack | CN7 |
| | | channel 5/6 | |
|---------------------------+----------+--------------+------|
| RJ-45 jack channel 1/2 | CN3 | RJ-45 | CN8 |
| | | auxiliary | |
| | | connector | |
|---------------------------+----------+--------------+------|
| RJ-45 jack channel 3/4 | CN4 | RJ-45 | CN9 |
| | | console | |
| | | connector | |
|---------------------------+----------+--------------+------|
| BNC network connector | CN5 | RJ-45 jack | CN10 |
| | | channel 7/8 | |
|---------------------------+----------+--------------+------|
| RJ-45 network connector | CN6 | Power switch | SW1 |
|------------------------------------------------------------|
| Note: CN3, CN4, CN7, CN10 accept either RJ-11 or |
| RJ-45 connectors. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Setting | Label | Position |
|----------------------------------+----------+--------------|
| Load defaults from NVRAM | SW1/1 | Off |
|----------------------------------+----------+--------------|
| Load defaults from ROM | SW1/1 | On |
|----------------------------------+----------+--------------|
| Command odd set recognition | SW1/2 | Off |
| disabled | | |
|----------------------------------+----------+--------------|
| Command odd set recognition | SW1/2 | On |
| enabled | | |
|----------------------------------+----------+--------------|
| Factory configured - do not | SW1/3 | Unidentified |
| alter | | |
|----------------------------------+----------+--------------|
| Factory configured - do not | SW1/4 | Unidentified |
| alter | | |
|----------------------------------+----------+--------------|
| Use software configured baud | SW2/3 | Off |
| rate | | |
|----------------------------------+----------+--------------|
| Force DIP switch rate | SW2/3 | On |
|----------------------------------+----------+--------------|
| Normal flash memory operation | SW2/4 | Off |
|----------------------------------+----------+--------------|
| Erase flash memory on boot-up | SW2/4 | On |
|----------------------------------+----------+--------------|
| Factory configured - do not | SW2/5-10 | Unidentified |
| alter | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CONSOLE PORT BAUD RATE |
|------------------------------------------------------------|
| Rate | SW2/1 | SW2/2 |
|--------------------+-------------------+-------------------|
| 9600bps | Off | Off |
|--------------------+-------------------+-------------------|
| 19.2Kbps | Off | On |
|--------------------+-------------------+-------------------|
| 38.4Kbps | On | Off |
|--------------------+-------------------+-------------------|
| 57.6Kbps | On | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAGNOSTIC LED(S) |
|------------------------------------------------------------|
| LED | Color | Status | Condition |
|------+--------+--------------+-----------------------------|
| LED1 | Off | Off | Power off |
|------+--------+--------------+-----------------------------|
| LED1 | Green | On | Power on |
|------+--------+--------------+-----------------------------|
| LED1 | Red | On | Critical failure |
|------+--------+--------------+-----------------------------|
| LED2 | Off | Off | Channel 1 idle |
|------+--------+--------------+-----------------------------|
| LED2 | Green | On | Channel 1 on-line |
|------+--------+--------------+-----------------------------|
| LED2 | Green | Blinking | Channel 1 testing data link |
| | | | layer |
|------+--------+--------------+-----------------------------|
| LED2 | Yellow | Blinking (8 | Channel 1 searching for U |
| | | times/sec.) | interface |
|------+--------+--------------+-----------------------------|
| LED2 | Yellow | Blinking (1 | Channel 1 searching for S/T |
| | | times/sec.) | interface |
|------+--------+--------------+-----------------------------|
| LED2 | Yellow | On | Channel 1 dialing |
|------+--------+--------------+-----------------------------|
| LED2 | Red | On | Channel 1 U interface not |
| | | | found |
|------+--------+--------------+-----------------------------|
| LED2 | Red | Blinking | Channel 1 incorrect SPID |
|------+--------+--------------+-----------------------------|
| LED3 | Off | Off | Channel 2 idle |
|------+--------+--------------+-----------------------------|
| LED3 | Green | On | Channel 2 on-line |
|------+--------+--------------+-----------------------------|
| LED3 | Green | Blinking | Channel 2 testing data link |
| | | | layer |
|------+--------+--------------+-----------------------------|
| LED3 | Yellow | Blinking (8 | Channel 2 searching for U |
| | | times/sec.) | interface |
|------+--------+--------------+-----------------------------|
| LED3 | Yellow | Blinking (1 | Channel 2 searching for S/T |
| | | times/sec.) | interface |
|------+--------+--------------+-----------------------------|
| LED3 | Yellow | On | Channel 2 dialing |
|------+--------+--------------+-----------------------------|
| LED3 | Red | On | Channel 2 U interface not |
| | | | found |
|------+--------+--------------+-----------------------------|
| LED3 | Red | Blinking | Channel 2 incorrect SPID |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAGNOSTIC LED(S) (CON’T) |
|------------------------------------------------------------|
| LED | Color | Status | Condition |
|------+--------+--------------+-----------------------------|
| LED4 | Off | Off | Channel 3 idle |
|------+--------+--------------+-----------------------------|
| LED4 | Green | On | Channel 3 on-line |
|------+--------+--------------+-----------------------------|
| LED4 | Green | Blinking | Channel 3 testing data link |
| | | | layer |
|------+--------+--------------+-----------------------------|
| LED4 | Yellow | Blinking (8 | Channel 3 searching for U |
| | | times/sec.) | interface |
|------+--------+--------------+-----------------------------|
| LED4 | Yellow | Blinking (1 | Channel 3 searching for S/T |
| | | times/sec.) | interface |
|------+--------+--------------+-----------------------------|
| LED4 | Yellow | On | Channel 3 dialing |
|------+--------+--------------+-----------------------------|
| LED4 | Red | On | Channel 3 U interface not |
| | | | found |
|------+--------+--------------+-----------------------------|
| LED4 | Red | Blinking | Channel 3 incorrect SPID |
|------+--------+--------------+-----------------------------|
| LED5 | Off | Off | Channel 4 idle |
|------+--------+--------------+-----------------------------|
| LED5 | Green | On | Channel 4 on-line |
|------+--------+--------------+-----------------------------|
| LED5 | Green | Blinking | Channel 4 testing data link |
| | | | layer |
|------+--------+--------------+-----------------------------|
| LED5 | Yellow | Blinking (8 | Channel 4 searching for U |
| | | times/sec.) | interface |
|------+--------+--------------+-----------------------------|
| LED5 | Yellow | Blinking (1 | Channel 4 searching for S/T |
| | | times/sec.) | interface |
|------+--------+--------------+-----------------------------|
| LED5 | Yellow | On | Channel 4 dialing |
|------+--------+--------------+-----------------------------|
| LED5 | Red | On | Channel 4 U interface not |
| | | | found |
|------+--------+--------------+-----------------------------|
| LED5 | Red | Blinking | Channel 4 incorrect SPID |
|------+--------+--------------+-----------------------------|
| LED6 | Off | Off | Channel 5 idle |
|------+--------+--------------+-----------------------------|
| LED6 | Green | On | Channel 5 on-line |
|------+--------+--------------+-----------------------------|
| LED6 | Green | Blinking | Channel 5 testing data link |
| | | | layer |
|------+--------+--------------+-----------------------------|
| LED6 | Yellow | Blinking (8 | Channel 5 searching for U |
| | | times/sec.) | interface |
|------+--------+--------------+-----------------------------|
| LED6 | Yellow | Blinking (1 | Channel 5 searching for S/T |
| | | times/sec.) | interface |
|------+--------+--------------+-----------------------------|
| LED6 | Yellow | On | Channel 5 dialing |
|------+--------+--------------+-----------------------------|
| LED6 | Red | On | Channel 5 U interface not |
| | | | found |
|------+--------+--------------+-----------------------------|
| LED6 | Red | Blinking | Channel 5 incorrect SPID |
|------+--------+--------------+-----------------------------|
| LED7 | Off | Off | Channel 6 idle |
|------+--------+--------------+-----------------------------|
| LED7 | Green | On | Channel 6 on-line |
|------+--------+--------------+-----------------------------|
| LED7 | Green | Blinking | Channel 6 testing data link |
| | | | layer |
|------+--------+--------------+-----------------------------|
| LED7 | Yellow | Blinking (8 | Channel 6 searching for U |
| | | times/sec.) | interface |
|------+--------+--------------+-----------------------------|
| LED7 | Yellow | Blinking (1 | Channel 6 searching for S/T |
| | | times/sec.) | interface |
|------+--------+--------------+-----------------------------|
| LED7 | Yellow | On | Channel 6 dialing |
|------+--------+--------------+-----------------------------|
| LED7 | Red | On | Channel 6 U interface not |
| | | | found |
|------+--------+--------------+-----------------------------|
| LED7 | Red | Blinking | Channel 6 incorrect SPID |
|------+--------+--------------+-----------------------------|
| LED8 | Off | Off | Channel 7 idle |
|------+--------+--------------+-----------------------------|
| LED8 | Green | On | Channel 7 on-line |
|------+--------+--------------+-----------------------------|
| LED8 | Green | Blinking | Channel 7 testing data link |
| | | | layer |
|------+--------+--------------+-----------------------------|
| LED8 | Yellow | Blinking (8 | Channel 7 searching for U |
| | | times/sec.) | interface |
|------+--------+--------------+-----------------------------|
| LED8 | Yellow | Blinking (1 | Channel 7 searching for S/T |
| | | times/sec.) | interface |
|------+--------+--------------+-----------------------------|
| LED8 | Yellow | On | Channel 7 dialing |
|------+--------+--------------+-----------------------------|
| LED8 | Red | On | Channel 7 U interface not |
| | | | found |
|------+--------+--------------+-----------------------------|
| LED8 | Red | Blinking | Channel 7 incorrect SPID |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAGNOSTIC LED(S) (CON’T) |
|------------------------------------------------------------|
| LED | Color | Status | Condition |
|-------+--------+--------------+----------------------------|
| LED9 | Off | Off | Channel 8 idle |
|-------+--------+--------------+----------------------------|
| LED9 | Green | On | Channel 8 on-line |
|-------+--------+--------------+----------------------------|
| LED9 | Green | Blinking | Channel 8 testing data |
| | | | link layer |
|-------+--------+--------------+----------------------------|
| LED9 | Yellow | Blinking (8 | Channel 8 searching for U |
| | | times/sec.) | interface |
|-------+--------+--------------+----------------------------|
| LED9 | Yellow | Blinking (1 | Channel 8 searching for |
| | | times/sec.) | S/T interface |
|-------+--------+--------------+----------------------------|
| LED9 | Yellow | On | Channel 8 dialing |
|-------+--------+--------------+----------------------------|
| LED9 | Red | On | Channel 8 U interface not |
| | | | found |
|-------+--------+--------------+----------------------------|
| LED9 | Red | Blinking | Channel 8 incorrect SPID |
|-------+--------+--------------+----------------------------|
| LED10 | Red | On | POST test |
|-------+--------+--------------+----------------------------|
| LED10 | Green | Blinking (1 | checking for software |
| | | times/sec.) | download |
|-------+--------+--------------+----------------------------|
| LED10 | Green | Blinking (8 | loading NETserver |
| | | times/sec.) | application into RAM |
|-------+--------+--------------+----------------------------|
| LED10 | Green | On | normal operation |
|-------+--------+--------------+----------------------------|
| LED11 | Red | On | POST |
|-------+--------+--------------+----------------------------|
| LED11 | Green | On | Erasing flash memory |
|-------+--------+--------------+----------------------------|
| LED11 | Amber | On | Programming flash memmory |
|-------+--------+--------------+----------------------------|
| LED11 | Off | Off | Normal |
|-------+--------+--------------+----------------------------|
| LED12 | Red | On | Interface failure |
|-------+--------+--------------+----------------------------|
| LED12 | Green | On | Transmitting packet |
|-------+--------+--------------+----------------------------|
| LED12 | Off | Off | Idle |
|-------+--------+--------------+----------------------------|
| LED13 | Red | On | Interface failure |
|-------+--------+--------------+----------------------------|
| LED13 | Green | On | Receiving packet |
|-------+--------+--------------+----------------------------|
| LED13 | Off | Off | Idle |
|-------+--------+--------------+----------------------------|
| LED14 | Red | Blinking | Collision (1 blink per |
| | | | collision) |
|-------+--------+--------------+----------------------------|
| LED14 | Green | On | 10 base-T link detected |
|-------+--------+--------------+----------------------------|
| LED14 | Off | Off | 10 base-2 link connection |
| | | | (If 10 base-T is being |
| | | | used, this indicates a bad |
| | | | link) |
|-------+--------+--------------+----------------------------|
| LED15 | Green | Blinking | Characters being |
| | | | received/transmitted |
| | | | through serial port |
|-------+--------+--------------+----------------------------|
| LED15 | Off | Off | Serial port idle |
|-------+--------+--------------+----------------------------|
| LED16 | Off | Off | Power off |
|-------+--------+--------------+----------------------------|
| LED16 | Green | On | Power on |
|-------+--------+--------------+----------------------------|
| LED16 | Red | On | Critical failure |
|-------+--------+--------------+----------------------------|
| LED17 | Off | Off | Channel 1 idle |
|-------+--------+--------------+----------------------------|
| LED17 | Green | On | Channel 1 on-line |
|-------+--------+--------------+----------------------------|
| LED17 | Green | Blinking | Channel 1 testing data |
| | | | link layer |
|-------+--------+--------------+----------------------------|
| LED17 | Yellow | Blinking (8 | Channel 1 searching for U |
| | | times/sec.) | interface |
|-------+--------+--------------+----------------------------|
| LED17 | Yellow | Blinking (1 | Channel 1 searching for |
| | | times/sec.) | S/T interface |
|-------+--------+--------------+----------------------------|
| LED17 | Yellow | On | Channel 1 dialing |
|-------+--------+--------------+----------------------------|
| LED17 | Red | On | Channel 1 U interface not |
| | | | found |
|-------+--------+--------------+----------------------------|
| LED17 | Red | Blinking | Channel 1 incorrect SPID |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAGNOSTIC LED(S) (CON’T) |
|------------------------------------------------------------|
| LED | Color | Status | Condition |
|-------+--------+--------------+----------------------------|
| LED18 | Off | Off | Channel 2 idle |
|-------+--------+--------------+----------------------------|
| LED18 | Green | On | Channel 2 on-line |
|-------+--------+--------------+----------------------------|
| LED18 | Green | Blinking | Channel 2 testing data |
| | | | link layer |
|-------+--------+--------------+----------------------------|
| LED18 | Yellow | Blinking (8 | Channel 2 searching for U |
| | | times/sec.) | interface |
|-------+--------+--------------+----------------------------|
| LED18 | Yellow | Blinking (1 | Channel 2 searching for |
| | | times/sec.) | S/T interface |
|-------+--------+--------------+----------------------------|
| LED18 | Yellow | On | Channel 2 dialing |
|-------+--------+--------------+----------------------------|
| LED18 | Red | On | Channel 2 U interface not |
| | | | found |
|-------+--------+--------------+----------------------------|
| LED18 | Red | Blinking | Channel 2 incorrect SPID |
|-------+--------+--------------+----------------------------|
| LED19 | Off | Off | Channel 3 idle |
|-------+--------+--------------+----------------------------|
| LED19 | Green | On | Channel 3 on-line |
|-------+--------+--------------+----------------------------|
| LED19 | Green | Blinking | Channel 3 testing data |
| | | | link layer |
|-------+--------+--------------+----------------------------|
| LED19 | Yellow | Blinking (8 | Channel 3 searching for U |
| | | times/sec.) | interface |
|-------+--------+--------------+----------------------------|
| LED19 | Yellow | Blinking (1 | Channel 3 searching for |
| | | times/sec.) | S/T interface |
|-------+--------+--------------+----------------------------|
| LED19 | Yellow | On | Channel 3 dialing |
|-------+--------+--------------+----------------------------|
| LED19 | Red | On | Channel 3 U interface not |
| | | | found |
|-------+--------+--------------+----------------------------|
| LED19 | Red | Blinking | Channel 3 incorrect SPID |
|-------+--------+--------------+----------------------------|
| LED20 | Off | Off | Channel 4 idle |
|-------+--------+--------------+----------------------------|
| LED20 | Green | On | Channel 4 on-line |
|-------+--------+--------------+----------------------------|
| LED20 | Green | Blinking | Channel 4 testing data |
| | | | link layer |
|-------+--------+--------------+----------------------------|
| LED20 | Yellow | Blinking (8 | Channel 4 searching for U |
| | | times/sec.) | interface |
|-------+--------+--------------+----------------------------|
| LED20 | Yellow | Blinking (1 | Channel 4 searching for |
| | | times/sec.) | S/T interface |
|-------+--------+--------------+----------------------------|
| LED20 | Yellow | On | Channel 4 dialing |
|-------+--------+--------------+----------------------------|
| LED20 | Red | On | Channel 4 U interface not |
| | | | found |
|-------+--------+--------------+----------------------------|
| LED20 | Red | Blinking | Channel 4 incorrect SPID |
|-------+--------+--------------+----------------------------|
| LED21 | Off | Off | Channel 5 idle |
|-------+--------+--------------+----------------------------|
| LED21 | Green | On | Channel 5 on-line |
|-------+--------+--------------+----------------------------|
| LED21 | Green | Blinking | Channel 5 testing data |
| | | | link layer |
|-------+--------+--------------+----------------------------|
| LED21 | Yellow | Blinking (8 | Channel 5 searching for U |
| | | times/sec.) | interface |
|-------+--------+--------------+----------------------------|
| LED21 | Yellow | Blinking (1 | Channel 5 searching for |
| | | times/sec.) | S/T interface |
|-------+--------+--------------+----------------------------|
| LED21 | Yellow | On | Channel 5 dialing |
|-------+--------+--------------+----------------------------|
| LED21 | Red | On | Channel 5 U interface not |
| | | | found |
|-------+--------+--------------+----------------------------|
| LED21 | Red | Blinking | Channel 5 incorrect SPID |
|-------+--------+--------------+----------------------------|
| LED22 | Off | Off | Channel 6 idle |
|-------+--------+--------------+----------------------------|
| LED22 | Green | On | Channel 6 on-line |
|-------+--------+--------------+----------------------------|
| LED22 | Green | Blinking | Channel 6 testing data |
| | | | link layer |
|-------+--------+--------------+----------------------------|
| LED22 | Yellow | Blinking (8 | Channel 6 searching for U |
| | | times/sec.) | interface |
|-------+--------+--------------+----------------------------|
| LED22 | Yellow | Blinking (1 | Channel 6 searching for |
| | | times/sec.) | S/T interface |
|-------+--------+--------------+----------------------------|
| LED22 | Yellow | On | Channel 6 dialing |
|-------+--------+--------------+----------------------------|
| LED22 | Red | On | Channel 6 U interface not |
| | | | found |
|-------+--------+--------------+----------------------------|
| LED22 | Red | Blinking | Channel 6 incorrect SPID |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAGNOSTIC LED(S) (CON’T) |
|------------------------------------------------------------|
| LED | Color | Status | Condition |
|-------+--------+--------------+----------------------------|
| LED23 | Off | Off | Channel 7 idle |
|-------+--------+--------------+----------------------------|
| LED23 | Green | On | Channel 7 on-line |
|-------+--------+--------------+----------------------------|
| LED23 | Green | Blinking | Channel 7 testing data |
| | | | link layer |
|-------+--------+--------------+----------------------------|
| LED23 | Yellow | Blinking (8 | Channel 7 searching for U |
| | | times/sec.) | interface |
|-------+--------+--------------+----------------------------|
| LED23 | Yellow | Blinking (1 | Channel 7 searching for |
| | | times/sec.) | S/T interface |
|-------+--------+--------------+----------------------------|
| LED23 | Yellow | On | Channel 7 dialing |
|-------+--------+--------------+----------------------------|
| LED23 | Red | On | Channel 7 U interface not |
| | | | found |
|-------+--------+--------------+----------------------------|
| LED23 | Red | Blinking | Channel 7 incorrect SPID |
|-------+--------+--------------+----------------------------|
| LED24 | Off | Off | Channel 8 idle |
|-------+--------+--------------+----------------------------|
| LED24 | Green | On | Channel 8 on-line |
|-------+--------+--------------+----------------------------|
| LED24 | Green | Blinking | Channel 8 testing data |
| | | | link layer |
|-------+--------+--------------+----------------------------|
| LED24 | Yellow | Blinking (8 | Channel 8 searching for U |
| | | times/sec.) | interface |
|-------+--------+--------------+----------------------------|
| LED24 | Yellow | Blinking (1 | Channel 8 searching for |
| | | times/sec.) | S/T interface |
|-------+--------+--------------+----------------------------|
| LED24 | Yellow | On | Channel 8 dialing |
|-------+--------+--------------+----------------------------|
| LED24 | Red | On | Channel 8 U interface not |
| | | | found |
|-------+--------+--------------+----------------------------|
| LED24 | Red | Blinking | Channel 8 incorrect SPID |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SUPPORTED COMMAND SET |
|------------------------------------------------------------|
| Basic AT Commands |
|------------------------------------------------------------|
| AT, ‘+++’, A/ |
|------------------------------------------------------------|
| A, B, C, E, F, O, V |
|------------------------------------------------------------|
| &C, &G, &W, &Z |
|------------------------------------------------------------|
| S Registers |
|------------------------------------------------------------|
| S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, |
| S18, S26 |
|------------------------------------------------------------|
| Note: See MHI Help File for full command documentation. |
+------------------------------------------------------------+
Proprietary AT Command Set
+------------------------------------------------------------+
| HELP |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] #$ [cmds] |
|--------------+---------------------------------------------|
| Description: | Display the help pannels for the octothorpe |
| | (#) command set |
+------------------------------------------------------------+
+------------------------------------------------------------+
| ADDITIONASL RESULT CODES |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &An [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls the display of the additional |
| | result codes |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í &A0 | Do not display ARQ result codes |
|--------------+---------------------------------------------|
| &A1 | Display ARQ result codes |
|--------------+---------------------------------------------|
| &A2 | Display ARQ result codes, HST, V.32, V.FC |
| | or V.34 modulation indicator |
|--------------+---------------------------------------------|
| &A3 | Display ARQ result codes and error control |
| | indicator LAPM, HST, MNP, SYNC, or NONE |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BREAK HANDLING |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Yn [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls the break handling |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í &Y0 | Destructive, don’t send break |
|--------------+---------------------------------------------|
| &Y1 | Destructive, expedited break sent |
|--------------+---------------------------------------------|
| &Y2 | Nondestructive, expedited break sent |
|--------------+---------------------------------------------|
| &Y3 | Nondestructive un-expedited break sent |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CONNECTION RATE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Nn [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls the connection rate |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í &N0 | Variable rate |
|--------------+---------------------------------------------|
| &N1 | 300bps |
|--------------+---------------------------------------------|
| &N2 | 1200bps |
|--------------+---------------------------------------------|
| &N3 | 2400bps |
|--------------+---------------------------------------------|
| &N4 | 4800bps |
|--------------+---------------------------------------------|
| &N5 | 7200bps |
|--------------+---------------------------------------------|
| &N6 | 9600bps |
|--------------+---------------------------------------------|
| &N7 | 12Kbps |
|--------------+---------------------------------------------|
| &N8 | 14.4Kbps |
|--------------+---------------------------------------------|
| &N9 | 16.8Kbps |
|--------------+---------------------------------------------|
| &N10 | 19.2Kbps |
|--------------+---------------------------------------------|
| &N11 | 21.6Kbps |
|--------------+---------------------------------------------|
| &N12 | 24Kbps |
|--------------+---------------------------------------------|
| &N13 | 26.4Kbps |
|--------------+---------------------------------------------|
| &N14 | 28.8Kbps |
|--------------+---------------------------------------------|
| &N15 | 31.2Kbps |
|--------------+---------------------------------------------|
| &N16 | 33.6Kbps |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DATA COMPRESSION |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Kn [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls the data compression |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| &K0 | Data compression disabled |
|--------------+---------------------------------------------|
| í &K1 | Use auto enable/disable data compression |
|--------------+---------------------------------------------|
| &K2 | Data compression always enabled |
|--------------+---------------------------------------------|
| &K3 | Selective data compression |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DATA SET READY (DSR) |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Sn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects DSR options |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| &S0 | DSR forced high |
|--------------+---------------------------------------------|
| í &S1 | DSR high only while modem is handshaking or |
| | connected |
|--------------+---------------------------------------------|
| &S2 | DSR and CTS follows CD when carrier is lost |
|--------------+---------------------------------------------|
| &S3 | DSR follows CD when carrier is lost |
|--------------+---------------------------------------------|
| &S4 | Send the computer a DSR signal at the same |
| | time as the CD |
|--------------+---------------------------------------------|
| &S5 | Send DSR normally, and follow CTS with CD |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DATA TERMINAL READY (DTR) |
|------------------------------------------------------------|
| Type: | Configuration |
|---------------+--------------------------------------------|
| Format: | AT [cmds] &Dn [cmds] |
|---------------+--------------------------------------------|
| Description: | Selects modem response to DTR |
|------------------------------------------------------------|
| Note: The action each variant of &D causes depends on |
| the setting of &Q |
|------------------------------------------------------------|
| Command | Function |
|---------------+--------------------------------------------|
| í &D0 | Modem does not respond to DTR |
|---------------+--------------------------------------------|
| &D1 | Modem goes to command mode after DTR goes |
| | is off |
|---------------+--------------------------------------------|
| &D2 | Modem goes to command mode and disconnects |
| | (hangs up) after DTR goes off; Auto-Answer |
| | is disabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAL |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] D<#> [cmds] |
|--------------+---------------------------------------------|
| Description: | Dials telephone number according to any |
| | modifiers included in the string |
|--------------+---------------------------------------------|
| Note: | Any combination of modifiers can be used to |
| | produce the desired dial functions in |
| | sequence. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| DL | Re-dial last number |
|--------------+---------------------------------------------|
| DP | Pulse dialing enabled |
|--------------+---------------------------------------------|
| DR | Reverse frequencies. |
|--------------+---------------------------------------------|
| DS=n | Dial stored telephone number n |
|--------------+---------------------------------------------|
| DT | Tone dialing enabled/Pulse dialing disabled |
|--------------+---------------------------------------------|
| DW | Dialing resumed following dial tone |
| | detection |
|--------------+---------------------------------------------|
| D, | Dialing paused for amount of time specified |
| | in S8 register |
|--------------+---------------------------------------------|
| D"WXY" | Optional method of denoting telephone |
| | numbers. Letters enclosed in quotes are |
| | interpreted as numbers according to the |
| | system found on a telephone keypad. |
|--------------+---------------------------------------------|
| D@ | Wait for Quite Answer function enabled. |
| | Modem waits until a "quiet answer," a |
| | ring-back signal followed by silence up to |
| | the time specified in S7, is received prior |
| | to executing the rest of the dial string. |
|--------------+---------------------------------------------|
| D$ | Wait for prompt tone detection function |
| | enabled. Waits for prompt tone for amount |
| | of time specified by the S7 command. |
|--------------+---------------------------------------------|
| D; | Modem returned to idle state after dialing. |
| | The semicolon can only be placed at the end |
| | of the dial command. |
|--------------+---------------------------------------------|
| D" | Dial the letters that follow |
|--------------+---------------------------------------------|
| D/ | Pause for 125 milliseconds |
+------------------------------------------------------------+
+------------------------------------------------------------+
| ERROR CONTROL |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Mn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects the error control protocol |
|--------------+---------------------------------------------|
| Command | Mode |
|--------------+---------------------------------------------|
| í &M0 | Normal mode, no error control |
|--------------+---------------------------------------------|
| &M1 | Online synchronous mode |
|--------------+---------------------------------------------|
| &M4 | Normal/ARQ mode, |
|--------------+---------------------------------------------|
| &M5 | ARQ asynchronous mode |
|--------------+---------------------------------------------|
| &M6 | V.25bis synchronous mode. |
|--------------+---------------------------------------------|
| &M7 | V.25bis synchronous mode using HDLC link |
| | protocol |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FACTORY DEFAULT PROFILE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &F [cmds] |
|--------------+---------------------------------------------|
| Description: | Sets values in active profile to values |
| | found in the default profile |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í &F0 | Load No Flow Control template settings |
|--------------+---------------------------------------------|
| &F1 | Load Hardware Flow Control template |
| | settings |
|--------------+---------------------------------------------|
| &F2 | Load Software Flow Control template |
| | settings |
+------------------------------------------------------------+
+------------------------------------------------------------+
| HARDWARE RESET |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] Z! [cmds] |
|--------------+---------------------------------------------|
| Description: | If SW1/1 is on, then revert to the settings |
| | in NVRAM. If SW1/1 is off, reset to the &F0 |
| | configuration template |
+------------------------------------------------------------+
+------------------------------------------------------------+
| HELP |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] $ |
|--------------+---------------------------------------------|
| Description: | Display help screens for the AT basic |
| | command set |
+------------------------------------------------------------+
+------------------------------------------------------------+
| HELP |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &$ |
|--------------+---------------------------------------------|
| Description: | Display help screens for the & command set |
+------------------------------------------------------------+
+------------------------------------------------------------+
| HELP |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] *$ |
|--------------+---------------------------------------------|
| Description: | Display help screens for the * command set |
+------------------------------------------------------------+
+------------------------------------------------------------+
| HOOK CONTROL |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] Hn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects whether the modem is on-hook or |
| | off-hook |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í H0 | Modem commanded to go on-hook (hang-up) |
+------------------------------------------------------------+
+------------------------------------------------------------+
| LINE TYPE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Ln [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects line type |
|--------------+---------------------------------------------|
| Command | Line Type |
|--------------+---------------------------------------------|
| í &L0 | Switched line (PSTN/Dial-up) |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MODEM CLOCK |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] Kn [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls the modem clock |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í K0 | If on-line, display current call duration; |
| | if off-line, display the last call’s |
| | duration |
|--------------+---------------------------------------------|
| K1 | Display the actual time (set clock using |
| | ATI3=HH:MM:SS K1) |
+------------------------------------------------------------+
+------------------------------------------------------------+
| RECEIVE DATA FLOW CONTROL |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &In [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls the receive data flow control |
|--------------+---------------------------------------------|
| Command | Jack Type |
|--------------+---------------------------------------------|
| í &I0 | Disables XON/XOFF flow control |
|--------------+---------------------------------------------|
| &I1 | Modem acts on typed XON/XOFF commands, Ctrl |
| | -S, or Ctrl -Q and passes them to remote |
| | device |
|--------------+---------------------------------------------|
| &I2 | Modem acts on typed XON/XOFF commands but |
| | removes them from data stream |
|--------------+---------------------------------------------|
| &I3 | Hewlett Packard host mode |
|--------------+---------------------------------------------|
| &I4 | Hewlett Packard terminal mode |
|--------------+---------------------------------------------|
| &I5 | Enable flow control on the phone link when |
| | the connection is not under error control |
+------------------------------------------------------------+
+------------------------------------------------------------+
| REPEAT LAST ISSUED COMMAND |
|------------------------------------------------------------|
| Type: | Immediate |
|---------------+--------------------------------------------|
| Format: | A> |
|---------------+--------------------------------------------|
| Description: | Repeats last issued command until any key |
| | is pressed |
|------------------------------------------------------------|
| Note: Do not precede this command with AT, or follow |
| it with <CR>. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| REPORT INFORMATION |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] In [cmds] |
|--------------+---------------------------------------------|
| Description: | Displays information requested |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| I0 | Reports 4 digit product code |
|--------------+---------------------------------------------|
| I1 | Reports results of ROM checksum |
|--------------+---------------------------------------------|
| I2 | Reports results of RAM test |
|--------------+---------------------------------------------|
| I3 | Reports the product name |
|--------------+---------------------------------------------|
| I4 | Reports the current modem settings |
|--------------+---------------------------------------------|
| I5 | Reports the settings stored in NVRAM |
|--------------+---------------------------------------------|
| I6 | Reports statistics for the last call |
|--------------+---------------------------------------------|
| I7 | Reports product configuration |
|--------------+---------------------------------------------|
| I10 | Reports dial security account status |
| | information |
|--------------+---------------------------------------------|
| I11 | Displays high speed connection report |
|--------------+---------------------------------------------|
| I12 | Reports ISDN settings |
+------------------------------------------------------------+
+------------------------------------------------------------+
| RESULT CODES |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] Qn [cmds] |
|--------------+---------------------------------------------|
| Description: | Enables modem to send result codes to the |
| | DTE |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í Q0 | Result code sending enabled |
|--------------+---------------------------------------------|
| Q1 | Result code sending disabled |
|--------------+---------------------------------------------|
| Q2 | Suppress result codes when answering |
+------------------------------------------------------------+
+------------------------------------------------------------+
| RTS/CTS |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Rn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects RTS/CTS options |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í &R0 | CTS follows RTS in data mode; RTS is |
| | ignored in command mode. |
|--------------+---------------------------------------------|
| &R1 | CTS forced high, RTS is ignored. |
|--------------+---------------------------------------------|
| &R2 | Enable hardware flow control of received |
| | data |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SELECT CALL PROGRESS RESULT CODES |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] Xn [cmds] |
|--------------+---------------------------------------------|
| Description: | Enables selection of tone detection and |
| | associated result code format options |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| X0 | Busy and dial tone detection disabled; |
| | result codes 0 - 4 enabled. |
|--------------+---------------------------------------------|
| X1 | Busy and dial tone detection disabled; |
| | result codes 0 - 5 & 10 enabled. |
|--------------+---------------------------------------------|
| X2 | Busy tone detection disabled, dial tone |
| | detection enabled; result codes 0 - 6 & 10 |
| | enabled. |
|--------------+---------------------------------------------|
| X3 | Busy tone detection enabled, dial tone |
| | detection disabled; result codes 0 - 5, 7 & |
| | 10 enabled. |
|--------------+---------------------------------------------|
| Í X4 | Busy and dial tone detection enabled; |
| | result codes 0 - 7 & 10 enabled. |
|--------------+---------------------------------------------|
| X5 | Busy tone detection enabled, dial tone |
| | detection disabled, all result codes |
| | enabled |
|--------------+---------------------------------------------|
| X6 | All result codes enabled |
|--------------+---------------------------------------------|
| X7 | Voice detection disabled, all result codes |
| | enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT RATE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Bn [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls the serial port rate |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í &B0 | Variable serial port rate |
|--------------+---------------------------------------------|
| &B1 | Fixed serial port rate |
|--------------+---------------------------------------------|
| &B2 | In answer mode use fixed rate for ARQ calls |
| | and variable rate for non ARQ calls. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SOFTWARE RESET |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] Z [cmds] |
|--------------+---------------------------------------------|
| Description: | If SW1/1 is set to on, revert to the |
| | settings in NVRAM. If SW1/1 is set to off, |
| | reset to the &F0 configuration template |
+------------------------------------------------------------+
+------------------------------------------------------------+
| TEST MODES |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Tn |
|--------------+---------------------------------------------|
| Description: | Selects test options |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| &T0 | End current test |
|--------------+---------------------------------------------|
| &T3 | Begin local digital loopback |
|--------------+---------------------------------------------|
| &T4 | Grant remote digital loopback request |
|--------------+---------------------------------------------|
| &T5 | Deny remote digital loopback request |
|--------------+---------------------------------------------|
| &T6 | Request remote digital loopback |
|--------------+---------------------------------------------|
| &T7 | Request remote digital loopback and |
| | self-test |
+------------------------------------------------------------+
+------------------------------------------------------------+
| TRANSMIT DATA FLOW CONTROL |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Hn [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls the transmit data flow |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í &H0 | Flow control disabled |
|--------------+---------------------------------------------|
| &H1 | Use hardware flow control enabled |
|--------------+---------------------------------------------|
| &H2 | Use software flow control enabled |
|--------------+---------------------------------------------|
| &H3 | Use both hardware and software flow control |
| | enabled |
+------------------------------------------------------------+
Extended AT Commands
+------------------------------------------------------------+
| ASSIGN PASSWORD |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %V=PWn [cmds] |
|--------------+---------------------------------------------|
| Description: | Assign the password in account n in |
| | security account |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CALL TYPE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] *Vn [cmds] |
|--------------+---------------------------------------------|
| Description: | Set the call type for each B-channel |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í *V0 | 0-5 for B-channel 1 |
|--------------+---------------------------------------------|
| *V1 | 0-5 for B-channel 2 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIRECTORY NUMBER |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] *Pn [cmds] |
|--------------+---------------------------------------------|
| Description: | Set the directory number that was assigned |
| | to you by your telephone company |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í *P1 | The DN for B-channel 1 |
|--------------+---------------------------------------------|
| *P2 | The DN for B-channel 2 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| ERASE SECURITY SETTINGS |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %En [cmds] |
|--------------+---------------------------------------------|
| Description: | Erases selected security settings |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| %E1 | Erase local access password |
|--------------+---------------------------------------------|
| %E2 | Erase autopass password |
|--------------+---------------------------------------------|
| %E3 | Erase passwords in accounts 0-9 |
|--------------+---------------------------------------------|
| %E4 | Erase phone numbers in accounts 0-9 |
|--------------+---------------------------------------------|
| %E5 | Disable account, dialback, and new number |
| | fields in accouns 0-9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| LOCAL ACCESS PASSWORD |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %Ln [cmds] |
|--------------+---------------------------------------------|
| Description: | Set local access password |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PASSWORD SECURITY |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %P [cmds] |
|--------------+---------------------------------------------|
| Description: | Disable password security |
+------------------------------------------------------------+
+------------------------------------------------------------+
| POINT TO POINT SELECTION |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] *Mn [cmds] |
|--------------+---------------------------------------------|
| Description: | Select point to point or multipoint |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í *M0 | Point to point |
|--------------+---------------------------------------------|
| *M1 | Multipoint |
+------------------------------------------------------------+
+------------------------------------------------------------+
| REMOTE CONFIGURATION |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %Cn [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls the remote configuration |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| %C0 | Defer configuration changes until the call |
| | is ended |
|--------------+---------------------------------------------|
| %C1 | Cancel configuration changes and restore |
| | the original configuration |
|--------------+---------------------------------------------|
| %C2 | Force configuration changes to take effect |
| | immediately |
+------------------------------------------------------------+
+------------------------------------------------------------+
| REMOTE CONFIGURATION |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %Fn [cmds] |
|--------------+---------------------------------------------|
| Description: | Configure another device’s data remotely |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| %F0 | No parity, 8 data bits |
|--------------+---------------------------------------------|
| %F1 | Mark parity, 7 data bits |
|--------------+---------------------------------------------|
| %F2 | Odd parity, 7 data bits |
|--------------+---------------------------------------------|
| %F3 | Even parity, 7 data bits |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SECURITY ACCOUNTS |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %An [cmds] |
|--------------+---------------------------------------------|
| Description: | Create and configure security accounts |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SECURITY ACCOUNTS |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %Sn [cmds] |
|--------------+---------------------------------------------|
| Description: | Access security accounts |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT RATE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %Bn [cmds] |
|--------------+---------------------------------------------|
| Description: | Remotely configure a modem’s serial port |
| | rate |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| %B0 | 110bps |
|--------------+---------------------------------------------|
| %B1 | 300bps |
|--------------+---------------------------------------------|
| %B2 | 600bps |
|--------------+---------------------------------------------|
| %B3 | 1200bps |
|--------------+---------------------------------------------|
| %B4 | 2400bps |
|--------------+---------------------------------------------|
| %B5 | 4800bps |
|--------------+---------------------------------------------|
| %B6 | 9600bps |
|--------------+---------------------------------------------|
| %B7 | 19200bps |
|--------------+---------------------------------------------|
| %B8 | 38400bps |
|--------------+---------------------------------------------|
| %B9 | 57600bps |
|--------------+---------------------------------------------|
| %B10 | 115200bps |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERVICE PROFILE ID |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] *Sn [cmds] |
|--------------+---------------------------------------------|
| Description: | Set the service profile ID |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í *S1 | the SPID for B-channel 1 |
|--------------+---------------------------------------------|
| *S2 | The SPID for B-channel 2 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SWITCH PROTOCOL |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] *Wn [cmds] |
|--------------+---------------------------------------------|
| Description: | Set the switch protocol used at the |
| | telephone company’s central office |
|--------------+---------------------------------------------|
| Command | Jack Type |
|--------------+---------------------------------------------|
| í *W0 | AT&T 5ESS Custom |
|--------------+---------------------------------------------|
| *W1 | Northern Telecom DMS-100 |
|--------------+---------------------------------------------|
| *W2 | National ISDN-1 |
|--------------+---------------------------------------------|
| *W3 | National ISDN-2 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| TERMINAL ENDPOINT ID |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] *T [cmds] |
|--------------+---------------------------------------------|
| Description: | Sets the terminal endpoint (TEI) |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í *T1 | 0-63 for B-channel 1 |
|--------------+---------------------------------------------|
| *T2 | 0-63 for B-channel 2 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| TONE FREQUENCIES |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %Tn [cmds] |
|--------------+---------------------------------------------|
| Description: | Enalbes recognition of the tone frequencies |
+------------------------------------------------------------+
S(status) -REGISTERS
+------------------------------------------------------------+
| BIT MAPPED REGISTER |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S15=n [cmds] |
|--------------+---------------------------------------------|
| Unit: | Bit-mapped |
|--------------+---------------------------------------------|
| Description: | Controls fallback |
|--------------+---------------------------------------------|
| Bit | Value | Function |
|------+-------+---------------------------------------------|
| 0 | 1 | Disable the modem’s extra high frequency |
| | | equalization if it causes problems on |
| | | shorter -link calls- for HST modulation |
| | | only |
|------+-------+---------------------------------------------|
| 1 | 2 | Disable online fallback |
|------+-------+---------------------------------------------|
| 2 | 4 | Disable 450bps back channel ---HST only |
|------+-------+---------------------------------------------|
| 3 | 8 | Reset non-ARQ mode transmit buffer from |
| | | 1.5Kbytes to 128 |
|------+-------+---------------------------------------------|
| 4 | 16 | Disable MNP level 4 |
|------+-------+---------------------------------------------|
| 5 | 32 | Set backspace key to delete |
|------+-------+---------------------------------------------|
| 6 | 64 | Alternate MNP setting for some 2400bps MNP |
| | | modems not made by U.S. Robotics of |
| | | Microcom. |
|------+-------+---------------------------------------------|
| 7 | 128 | Custom applications only |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT MAPPED REGISTER S16 |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S16=n [cmds] |
|--------------+---------------------------------------------|
| Unit: | Bit-mapped |
|--------------+---------------------------------------------|
| Description: | Controls loopback tests and test pattern |
|--------------+---------------------------------------------|
| Bit | Value | Function |
|------+-------+---------------------------------------------|
| 2 | 4 | Test pattern |
|------+-------+---------------------------------------------|
| 3 | 8 | Remote digital loopback |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT MAPPED REGISTER S53 |
|------------------------------------------------------------|
| Type: | Register |
|------------------------------------------------------------|
| Format: | AT [cmds] S53=n [cmds] |
|-----------------+------------------------------------------|
| Description: | Bit mapped register |
|------------------------------------------------------------|
| Bit | Value | Function |
|-----------+-------+----------------------------------------|
| 0 | 1 | Dial security enabled |
|-----------+-------+----------------------------------------|
| 1 | 2 | Prompting enabled |
|-----------+-------+----------------------------------------|
| 2 | 4 | Local access password protection |
| | | enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT MAPPED REGISTER S54 |
|------------------------------------------------------------|
| Type: | Register |
|------------------------------------------------------------|
| Format: | AT [cmds] S54=n [cmds] |
|----------------+-------------------------------------------|
| Description: | Bit mapped register |
|------------------------------------------------------------|
| Bit | Value | Function |
|----------+-------+-----------------------------------------|
| 0 | 1 | Disable 2400 symbol rate |
|----------+-------+-----------------------------------------|
| 1 | 2 | Disable 2743 symbol rate |
|----------+-------+-----------------------------------------|
| 2 | 4 | Disable 2800 symbol rate |
|----------+-------+-----------------------------------------|
| 3 | 8 | Disable 3000 symbol rate |
|----------+-------+-----------------------------------------|
| 4 | 16 | Disable 3200 symbol rate |
|----------+-------+-----------------------------------------|
| 5 | 32 | Disable 3429 symbol rate |
|----------+-------+-----------------------------------------|
| 6 | 64 | Disable Call Indicate |
|----------+-------+-----------------------------------------|
| 7 | 128 | Disable V.8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S13 |
|------------------------------------------------------------|
| Format: | AT [cmds] S13=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 170 |
|--------------+---------------------------------------------|
| Range: | 0-174 |
|--------------+---------------------------------------------|
| Unit: | Bit-mapped |
|--------------+---------------------------------------------|
| Description: | Controls echo, result codes and display, |
| | dial mode, and answer/originate mode. |
|--------------+---------------------------------------------|
| Bit | Value | Function |
|------+-------+---------------------------------------------|
| 0 | 1 | Reset when DTR drops |
|------+-------+---------------------------------------------|
| 1 | 2 | Reverse normal auto answer mode |
|------+-------+---------------------------------------------|
| 2 | 4 | Disable 250 msec pause before result code |
| | | display |
|------+-------+---------------------------------------------|
| 3 | 8 | On DTR signal, Autodial the number stored |
| | | in NVRAM at position 0 |
|------+-------+---------------------------------------------|
| 4 | 16 | At power on/reset, auto dial number stored |
| | | in NVRAM at position 0 |
|------+-------+---------------------------------------------|
| 5 | 32 | Disable HST |
|------+-------+---------------------------------------------|
| 6 | 64 | Disable MNP level 3 |
|------+-------+---------------------------------------------|
| 7 | 128 | Hardware reset |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S14 |
|------------------------------------------------------------|
| Format: | AT [cmds] S14=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 170 |
|--------------+---------------------------------------------|
| Range: | 0-174 |
|--------------+---------------------------------------------|
| Unit: | Bit-mapped |
|--------------+---------------------------------------------|
| Description: | Controls echo, result codes and display, |
| | dial mode, and answer/originate mode. |
|--------------+---------------------------------------------|
| Bit | Value | Function |
|------+-------+---------------------------------------------|
| 0 | í 1 | Disconnect on escape code |
|------+-------+---------------------------------------------|
| 1 | 2 | Send result codes only when originating a |
| | | call |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S28 |
|------------------------------------------------------------|
| Format | AT [cmds] S28=n [cmds] |
|--------------+---------------------------------------------|
| Default: | Unidentified |
|--------------+---------------------------------------------|
| Range: | 8 |
|--------------+---------------------------------------------|
| Unit: | .1 second |
|--------------+---------------------------------------------|
| Description: | Sets the duration of the extra 3000/600 Hz |
| | answer tones sent during handshaking. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BITMAPPED REGISTER S27 |
|------------------------------------------------------------|
| Format | AT [cmds] S27=n [cmds] |
|--------------+---------------------------------------------|
| Default: | Unidentified |
|--------------+---------------------------------------------|
| Range: | 0 |
|--------------+---------------------------------------------|
| Unit: | Bit-mapped |
|--------------+---------------------------------------------|
| Description: | Selects modulation |
|--------------+---------------------------------------------|
| Bit | Value | Function |
|------+-------+---------------------------------------------|
| 0 | 1 | Enable ITU-T V.21 |
|------+-------+---------------------------------------------|
| 1 | 2 | Enable unencoded modulation in V.32 mode |
|------+-------+---------------------------------------------|
| 2 | 4 | Disable V.32 modulation |
|------+-------+---------------------------------------------|
| 3 | 8 | Disabl;e 2100Hz answer tone |
|------+-------+---------------------------------------------|
| 4 | 0 | Complete handshaking sequence:V.42 |
| | | detection, LAPM error control, MNP |
| | 16 | |
| | | Disable MNP |
| | 0 | |
| | | Disable V.42 detection and LAPM |
| | 16 | |
| | | Disable detection phase |
|------+-------+---------------------------------------------|
| 5 | 0 | Complete handshaking sequence:V.42 |
| | | detection, LAPM error control, MNP |
| | 0 | |
| | | Disable MNP |
| | 32 | |
| | | Disable V.42 detection and LAPM |
| | 32 | |
| | | Disable detection phase |
|------+-------+---------------------------------------------|
| 7 | 128 | Unusual software incompatibility |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BITMAPPED REGISTER S29 |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S29=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 20 |
|--------------+---------------------------------------------|
| Range: | Unidentified |
|--------------+---------------------------------------------|
| Unit: | .1 sec |
|--------------+---------------------------------------------|
| Description: | Sets the duration of the V.21 answer tone |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S34 |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S34n [cmds] |
|--------------+---------------------------------------------|
| Default: | 0 |
|--------------+---------------------------------------------|
| Range: | Unidentified |
|--------------+---------------------------------------------|
| Unit: | Unidentified |
|--------------+---------------------------------------------|
| Description: | Controls V.32bis |
|--------------+---------------------------------------------|
| Bit | Value | Function |
|------+-------+---------------------------------------------|
| 0 | 1 | Disable V.32bis |
|------+-------+---------------------------------------------|
| 1 | 2 | Disable modem’s enhanced proprietary |
| | | V.32bis modulation |
|------+-------+---------------------------------------------|
| 2 | 4 | Disable the faster retrains that occure |
| | | during proprietary V.32terbo modulation |
|------+-------+---------------------------------------------|
| 3 | 8 | Enable V.23 |
|------+-------+---------------------------------------------|
| 4 | 16 | Force the MR LED to show DSR |
|------+-------+---------------------------------------------|
| 5 | 32 | Enable MI/MIC |
|------+-------+---------------------------------------------|
| 6 | 64 | Disable the remote access busy message |
|------+-------+---------------------------------------------|
| 7 | 128 | Disable V.32terbo |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S51 |
|------------------------------------------------------------|
| Format | AT [cmds] S51=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 0 |
|--------------+---------------------------------------------|
| Range: | Unidentified |
|--------------+---------------------------------------------|
| Unit: | Bit-mapped |
|--------------+---------------------------------------------|
| Description: | MNP/V.42 control |
|--------------+---------------------------------------------|
| Bit | Value | Function |
|------+-------+---------------------------------------------|
| 0 | 1 | Disable MNP/V.42 for V.22 |
|------+-------+---------------------------------------------|
| 1 | 2 | Disable MNP/V.42 for V.22bis |
|------+-------+---------------------------------------------|
| 2 | 4 | Disable MNP/V.42 for V.32/V.32bis/V.32terbo |
|------+-------+---------------------------------------------|
| 6 | 64 | Disable selective reject |
|------+-------+---------------------------------------------|
| 7 | 128 | Enable handset exclusion delay |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S55 |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S55=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Bit-mapped register |
|--------------+---------------------------------------------|
| Bit | Value | Function |
|------+-------+---------------------------------------------|
| 0 | 1 | Disable 8S-2D mapping |
|------+-------+---------------------------------------------|
| 1 | 2 | Disable 16S-4D mapping |
|------+-------+---------------------------------------------|
| 2 | 4 | Disable 32S-2D mapping |
|------+-------+---------------------------------------------|
| 3 | 8 | Disable 64S-4D mapping |
|------+-------+---------------------------------------------|
| 7 | 128 | Enable phase roll detection |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S56 |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S56 [cmds] |
|--------------+---------------------------------------------|
| Description: | Bit-mapped register |
|--------------+---------------------------------------------|
| Bit | Value | Function |
|------+-------+---------------------------------------------|
| 0 | 1 | Disable non-linear coding |
|------+-------+---------------------------------------------|
| 1 | 2 | Disable TX level deviation |
|------+-------+---------------------------------------------|
| 2 | 4 | Disable pre-emphasis |
|------+-------+---------------------------------------------|
| 3 | 8 | Disable precoding |
|------+-------+---------------------------------------------|
| 4 | 16 | Disable shaping |
|------+-------+---------------------------------------------|
| 5 | 32 | Disable 31.2 and 33.6 speeds in V.34 |
|------+-------+---------------------------------------------|
| 6 | 64 | Disable V.34 |
|------+-------+---------------------------------------------|
| 7 | 128 | Disable V.FC |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S69 |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S69=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Bit-mapped register |
|--------------+---------------------------------------------|
| Bit | Value | Function |
|------+-------+---------------------------------------------|
| 0 | 1 | Disable plug and play signaling |
|------+-------+---------------------------------------------|
| 1 | 2 | Enable carrier loss redial |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S70 |
|------------------------------------------------------------|
| Type | Register or Configuration |
|--------------+---------------------------------------------|
| Format | AT [cmds] S70=n [cmds] |
|--------------+---------------------------------------------|
| Description | Bit-mapped register |
|--------------+---------------------------------------------|
| Bit | Value | Function |
|------+-------+---------------------------------------------|
| 0 | 1 | Enable recognition of Ring A |
|------+-------+---------------------------------------------|
| 1 | 2 | Enable recognition of Ring B |
|------+-------+---------------------------------------------|
| 2 | 4 | Enable recognition of Ring C |
|------+-------+---------------------------------------------|
| 3 | 8 | Enable recognition of Ring D |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BREAK LENGTH |
|------------------------------------------------------------|
| Format | AT [cmds] S21=n [cmds] |
|--------------+---------------------------------------------|
| Default: | Unidentified |
|--------------+---------------------------------------------|
| Range: | Unidentified |
|--------------+---------------------------------------------|
| Unit: | 10msec |
|--------------+---------------------------------------------|
| Description: | Sets the duration of breaks sent from the |
| | modem to the computer or terminal |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DSR RECOGNITION |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S25=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 5 |
|--------------+---------------------------------------------|
| Range: | Unidentified |
|--------------+---------------------------------------------|
| Unit: | .1 second |
|--------------+---------------------------------------------|
| Description: | Sets DTR recognition time |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DSR SIGNAL |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S24=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 150 |
|--------------+---------------------------------------------|
| Range: | Unidentified |
|--------------+---------------------------------------------|
| Unit: | .02 sec |
|--------------+---------------------------------------------|
| Description: | Sets the duration between pulsed DSR |
| | signals when the modem is set to &S2 or |
| | &S3. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FLOW CONTROL CHARACTER - XOFF |
|------------------------------------------------------------|
| Format | AT [cmds] S23=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 19 |
|--------------+---------------------------------------------|
| Range: | Unidentified |
|--------------+---------------------------------------------|
| Description: | Stores the ASCII code for the XOFF |
| | character |
+------------------------------------------------------------+
+------------------------------------------------------------+
| GUARD TIME DURATION |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S43=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 200 |
|--------------+---------------------------------------------|
| Unit: | .02 sec |
|--------------+---------------------------------------------|
| Description: | Sets the duration of the guard time for the |
| | remote access sequence |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INACTIVITY TIMER |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S19=n [cmds] |
|--------------+---------------------------------------------|
| Default: | Unidentified |
|--------------+---------------------------------------------|
| Range: | Unidentified |
|--------------+---------------------------------------------|
| Unit: | Minute |
|--------------+---------------------------------------------|
| Description: | Sets the duration in minutes for the |
| | inactivity timer, S19=0 disables the timer |
+------------------------------------------------------------+
+------------------------------------------------------------+
| REESTABLISHING CONNECTION INTERVAL |
|------------------------------------------------------------|
| Format | AT [cmds] S44=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 15 |
|--------------+---------------------------------------------|
| Description: | Sets the duration of the interval between |
| | losing carrier and reestablishing a |
| | connection |
+------------------------------------------------------------+
+------------------------------------------------------------+
| REMOTE ACCESS |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S41=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Sets the number of allowable remote access |
| | login attempts, thus enabling or disabling |
| | remote access. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| REMOTE ACCESS ESCAPE CHARACTER |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S42=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 126 |
|--------------+---------------------------------------------|
| Range: | Unidentified |
|--------------+---------------------------------------------|
| Unit: | Unidentified |
|--------------+---------------------------------------------|
| Description: | Stores the ASCII decimal code for the |
| | remote access escape character. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| TRANSMIT BUFFER |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S38n [cmds] |
|--------------+---------------------------------------------|
| Description: | Sets the time before a forced hang up and |
| | clearing of the transmit buffer when DTR |
| | drops during an ARQ call. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VOICE/DATA SWITCH |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S32=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 9 |
|--------------+---------------------------------------------|
| Range: | Unidentified |
|--------------+---------------------------------------------|
| Unit: | Unidentified |
|--------------+---------------------------------------------|
| Description: | Assign voice/data switch function |
|--------------+---------------------------------------------|
| Value | Function |
|--------------+---------------------------------------------|
| 0 | Disabled |
|--------------+---------------------------------------------|
| 1 | Voice/data - originate mode |
|--------------+---------------------------------------------|
| 2 | Voice/data - answer mode |
|--------------+---------------------------------------------|
| 3 | Radial last number |
|--------------+---------------------------------------------|
| 4 | Dial number stored at position 0 |
|--------------+---------------------------------------------|
| 5 | Auto answer on/off toggle |
|--------------+---------------------------------------------|
| 6 | Reset modem |
|--------------+---------------------------------------------|
| 7 | Initiate remote digital loopback |
|--------------+---------------------------------------------|
| 8 | Busy out the phone line toggle |
|--------------+---------------------------------------------|
| 9 | Execute stored command |
+------------------------------------------------------------+
+------------------------------------------------------------+
| XON CHARACTER |
|------------------------------------------------------------|
| Format | AT [cmds] S22=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 17 |
|--------------+---------------------------------------------|
| Range: | Unidentified |
|--------------+---------------------------------------------|
| Unit: | Bit-mapped |
|--------------+---------------------------------------------|
| Description: | Stores the ASCII code for XON character |
+------------------------------------------------------------+