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# NETCOMM LIMITED
MEMORYMODEM 336 (AM3440)
Card Type Modem (asynchronous)
Chipset Unidentified
Maximum Onboard Memory Unidentified
I/O Options Voice
Maximum Data Rate 33.6Kbps
Maximum Fax Rate 14.4Kbps
Data Modulation Bell 103A, 212A
ITU-T V.21, V.22, V.22bis, V.23, V.32,
V.32bis, V.34
Rockwell V.FC
Fax Modulation ITU-T V.17, V.27ter, V.29
Error MNP5, MNP10, V.42, V.42bis
Correction/Compression
Fax Class Class I & II
Data Bus Serial
(IMG) IMG 1
+------------------------------------------------------------+
| DIAGNOSTIC LED(S) |
|------------------------------------------------------------|
| LED | Color | Status | Condition |
|----------+----------+----------+---------------------------|
| TD | Red | Blinking | Modem is transmitting |
| | | | data |
|----------+----------+----------+---------------------------|
| TD | Red | Off | Modem is not transmitting |
| | | | data |
|----------+----------+----------+---------------------------|
| RD | Red | Blinking | Modem is receiving data |
|----------+----------+----------+---------------------------|
| RD | Red | Off | Modem is not receiving |
| | | | data |
|----------+----------+----------+---------------------------|
| OH | Red | On | Modem is off-hook |
|----------+----------+----------+---------------------------|
| OH | Red | Off | Modem is on-hook |
|----------+----------+----------+---------------------------|
| CD | Red | On | Carrier signal detected |
|----------+----------+----------+---------------------------|
| CD | Red | Off | Carrier signal not |
| | | | detected |
|----------+----------+----------+---------------------------|
| AA | Red | On | Auto-answer enabled |
|----------+----------+----------+---------------------------|
| AA | Red | Blinking | Auto-answer enabled and |
| | | | modem will store incoming |
| | | | messages |
|----------+----------+----------+---------------------------|
| AA | Red | Off | Auto-answer disabled |
|----------+----------+----------+---------------------------|
| TR | Red | On | DTR signal is high |
|----------+----------+----------+---------------------------|
| TR | Red | Off | DTR signal is low |
|----------+----------+----------+---------------------------|
| 1 Status | 2 Status | 3 Status | Condition |
|----------+----------+----------+---------------------------|
| Slow | Off | Off | Modem is connected at |
| blink | | | 300bps |
|----------+----------+----------+---------------------------|
| Slow | Off | On | Modem is connected at |
| blink | | | 1200/75bps |
|----------+----------+----------+---------------------------|
| Slow | On | Off | Modem is connected at |
| blink | | | 1200bps |
|----------+----------+----------+---------------------------|
| Slow | On | On | Modem is connected at |
| blink | | | 2400bps |
|----------+----------+----------+---------------------------|
| Off | On | On | Modem is connected at |
| | | | 4800bps |
|----------+----------+----------+---------------------------|
| On | Off | Off | Modem is connected at |
| | | | 7200bps |
|----------+----------+----------+---------------------------|
| On | Off | On | Modem is connected at |
| | | | 9600bps |
|----------+----------+----------+---------------------------|
| On | On | Off | Modem is connected at |
| | | | 12Kbps |
|----------+----------+----------+---------------------------|
| On | On | On | Modem is connected at |
| | | | 14.4Kbps |
|----------+----------+----------+---------------------------|
| Medium | On | Off | Modem is connected at |
| blink | | | 16.8Kbps |
|----------+----------+----------+---------------------------|
| Medium | Off | On | Modem is connected at |
| blink | | | 19.2Kbps |
|----------+----------+----------+---------------------------|
| Medium | On | On | Modem is connected at |
| blink | | | 21.6Kbps |
|----------+----------+----------+---------------------------|
| Fast | Off | Off | Modem is connected at |
| blink | | | 24Kbps |
|----------+----------+----------+---------------------------|
| Fast | On | Off | Modem is connected at |
| blink | | | 26.4Kbps |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAGNOSTIC LED(S) (CON'T) |
|------------------------------------------------------------|
| 1 Status | 2 Status | 3 Status | Condition |
|-------------+-------------+-------------+------------------|
| Fast blink | On | On | Modem is |
| | | | connected at |
| | | | 28.8Kbps |
|-------------+-------------+-------------+------------------|
| Fast blink | Fast blink | Off | Modem is |
| | | | connected at |
| | | | 31.2Kbps |
|-------------+-------------+-------------+------------------|
| Fast blink | Fast blink | On | Modem is |
| | | | connected at |
| | | | 33.6Kbps |
|-------------+-------------+-------------+------------------|
| Off | Off | Slow blink | Modem is |
| | | | connected at |
| | | | 2400bps in fax |
| | | | mode |
|-------------+-------------+-------------+------------------|
| Off | On | Slow blink | Modem is |
| | | | connected at |
| | | | 4800bps in fax |
| | | | mode |
|-------------+-------------+-------------+------------------|
| On | Off | Slow blink | Modem is |
| | | | connected at |
| | | | 7200bps in fax |
| | | | mode |
|-------------+-------------+-------------+------------------|
| On | On | Slow blink | Modem is |
| | | | connected at |
| | | | 9600bps in fax |
| | | | mode |
|-------------+-------------+-------------+------------------|
| On | Slow blink | Slow blink | Modem is |
| | | | connected at |
| | | | 14.4Kbps in fax |
| | | | mode |
|-------------+-------------+-------------+------------------|
| Alternating | Alternating | Alternating | Modem has stored |
| | | | a message in |
| | | | memory |
+------------------------------------------------------------+
+---------------------------------------------+
| MISCELLANEOUS TECHNICAL NOTES |
|---------------------------------------------|
| A back-panel diagram is not available. |
+---------------------------------------------+
+------------------------------------------------------------+
| SUPPORTED STANDARD COMMANDS |
|------------------------------------------------------------|
| Basic AT Commands |
|------------------------------------------------------------|
| +++, ‘comma’, A/ |
|------------------------------------------------------------|
| A, E, H, L, M, P, Q, T, V, W, Z |
|------------------------------------------------------------|
| &D, &F, &G, &L, &S, &T, &W, &Y, &Z |
|------------------------------------------------------------|
| Extended AT Commands |
|------------------------------------------------------------|
| \A, \B, \J, \N, \Q, T, \X |
|------------------------------------------------------------|
| %C, %E, %Q |
|------------------------------------------------------------|
| Special AT Commands |
|------------------------------------------------------------|
| :E, *H, -K, )M, -Q |
|------------------------------------------------------------|
| S-Registers |
|------------------------------------------------------------|
| S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, |
| S16, S18, S25, S26, S29, S30, S38, S95 |
|------------------------------------------------------------|
| Note: See MHI help file for complete information. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| UNIDENTIFIED COMMANDS |
|------------------------------------------------------------|
| Command | Default |
|------------------------------+-----------------------------|
| \K | 5 |
|------------------------------+-----------------------------|
| %N | 0 |
|------------------------------+-----------------------------|
| S33 | 3 |
|------------------------------+-----------------------------|
| S45 | 98 |
+------------------------------------------------------------+
Proprietary AT Command Set
+------------------------------------------------------------+
| AUTO-RANGE TIME |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S47=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 8 |
|--------------+---------------------------------------------|
| Range: | 1 - 255 |
|--------------+---------------------------------------------|
| Unit: | 1 second |
|--------------+---------------------------------------------|
| Description: | The function of this command is |
| | unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CHARACTER LENGTH |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Bn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects the character length the modem will |
| | use. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| &B0 | 8 bit character length selected. |
|--------------+---------------------------------------------|
| &B1 | 9 bit character length selected. |
|--------------+---------------------------------------------|
| &B2 | 10 bit character length selected. |
|--------------+---------------------------------------------|
| &B3 | 11 bit character length selected. |
|--------------+---------------------------------------------|
| í &B4 | Modem auto-detects 10 or 11 bit character |
| | length. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DCD SIGNAL |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Cn [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls the behaviour of the DCD signal. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| &C0 | DCD forced high. |
|--------------+---------------------------------------------|
| í &C1 | DCD forced high after carrier signal is |
| | detected. |
|--------------+---------------------------------------------|
| &C2 | DCD forced high except at disconnect. |
|--------------+---------------------------------------------|
| &C3 | DCD forced high for voice mode. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DCD SIGNAL |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %Tn [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls the behaviour of the DCD signal. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í %T0 | DCD normal. |
|--------------+---------------------------------------------|
| %T1 | DCD forced high. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAL |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] D<#>;[cmds] |
|--------------+---------------------------------------------|
| Description: | Dials the telephone number indicated |
| | according to any modifiers included in the |
| | string. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| DF | Calling tone disabled for this call. |
|--------------+---------------------------------------------|
| DJ | MNP10 link will be negotiated at 1200bps |
| | for this call. |
|--------------+---------------------------------------------|
| DK | MNP10 power level adjustment enabled for |
| | this call. |
|--------------+---------------------------------------------|
| DL | Re-dial last number. |
|--------------+---------------------------------------------|
| DM | Make a LAPM reliable mode connection this |
| | call. |
|--------------+---------------------------------------------|
| DP | Pulse dialing enabled. |
|--------------+---------------------------------------------|
| DR | Answer mode enabled; originate mode |
| | disabled following handshake initiation. |
|--------------+---------------------------------------------|
| DS=n | Dial stored telephone number n. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAL (CON’T) |
|------------------------------------------------------------|
| Command | Function |
|---------+--------------------------------------------------|
| DT | Tone dialing enabled. |
|---------+--------------------------------------------------|
| DW | Dialing resumed following dial tone detection. |
|---------+--------------------------------------------------|
| D, | Dialing paused for amount of time specified in |
| | S8 register. |
|---------+--------------------------------------------------|
| D! | Flash function initiated. Modem commanded to go |
| | off-hook for specified time before returning |
| | on-hook. |
|---------+--------------------------------------------------|
| D@ | Wait for Quiet 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^ | Calling tone disabled for this call. |
|---------+--------------------------------------------------|
| D; | Modem returned to idle state after dialing. The |
| | semicolon can only be placed at the end of the |
| | dial command. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| LED MODE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %Mn [cmds] |
|--------------+---------------------------------------------|
| Description: | Sets what the front-panel LEDs indicate. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í %M0 | LEDs indicate line speed. |
|--------------+---------------------------------------------|
| %M1 | LEDs indicate line quality, V.42 and MNP |
| | errors, and flow control. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| LOCAL SERIAL PORT SPEED |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] Rn [cmds] |
|--------------+---------------------------------------------|
| Description: | Sets the speed of the local serial port. |
|--------------+---------------------------------------------|
| Note: | There may be more options supported by this |
| | command than are listed below. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| R9 | Set local serial port speed to 9600bps. |
|--------------+---------------------------------------------|
| R14 | Set local serial port speed to 14.4Kbps. |
|--------------+---------------------------------------------|
| R19 | Set local serial port speed to 19.2Kbps. |
|--------------+---------------------------------------------|
| R28 | Set local serial port speed to 28.8Kbps. |
|--------------+---------------------------------------------|
| R38 | Set local serial port speed to 38.4Kbps. |
|--------------+---------------------------------------------|
| R57 | Set local serial port speed to 57.6Kbps. |
|--------------+---------------------------------------------|
| R115 | Set local serial port speed to 115.2Kbps. |
|--------------+---------------------------------------------|
| R230 | Set local serial port speed to 230.4Kbps. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MESSAGE CLEAR - FAST |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] #MCLN [cmds] |
|--------------+---------------------------------------------|
| Description: | Erases all the used portions of the modem's |
| | memory. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MESSAGE CLEAR - MESSAGES |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] #MCLR [cmds] |
|--------------+---------------------------------------------|
| Description: | Erases the message area of the modem's |
| | memory. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MESSAGE CLEAR - THOROUGH |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] #MINI [cmds] |
|--------------+---------------------------------------------|
| Description: | Erases the modem's memory completely, |
| | including unused portions. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MESSAGE DISPLAY |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] #MCD [cmds] |
|--------------+---------------------------------------------|
| Description: | Displays the messages that are stored in |
| | the modem's memory. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MESSAGE DOWNLOAD |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] #MDV [cmds] |
|--------------+---------------------------------------------|
| Description: | Downloads the messages stored in the |
| | modem's memory to the DTE. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MESSAGE ERASE |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] #MEVn [cmds] |
|--------------+---------------------------------------------|
| Description: | Erases the message specified from the |
| | modem's memory. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MESSAGE NUMBER - FAX |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] #MSF [cmds] |
|--------------+---------------------------------------------|
| Description: | Displays the number of fax messages stored |
| | in the modem's memory. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MESSAGE NUMBER - VOICE |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] #MSV [cmds] |
|--------------+---------------------------------------------|
| Description: | Displays the number of voice messages |
| | stored in the modem's memory. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MESSAGE PLAY |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] #MPVn [cmds] |
|--------------+---------------------------------------------|
| Description: | Plays the voice message indicated. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MESSAGE STORAGE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] #MEM=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects whether the modem will store |
| | incoming fax and voice messages in its |
| | memory. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| #MEM=0 | Memory storage disabled. |
|--------------+---------------------------------------------|
| í #MEM=1 | Memory storage enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MESSAGE - WELCOME MESSAGE RECORD |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] #MRW [cmds] |
|--------------+---------------------------------------------|
| Description: | Records the voice welcome message. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MESSAGE - WELCOME MESSAGE RECORD FROM DATA MODE |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] #MWEL [cmds] |
|--------------+---------------------------------------------|
| Description: | Enters voice mode, sets the serial port |
| | speed to 38.4Kbps, sets the DSP source to |
| | the handset, and records the voice welcome |
| | message. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MODE SELECTION |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] #CLS=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects which mode the modem will operate |
| | in. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| #CLS=0 | Modem will operate in data mode. |
|--------------+---------------------------------------------|
| #CLS=1 | Modem will operate in fax class 1 mode. |
|--------------+---------------------------------------------|
| #CLS=2 | Modem will operate in fax class 2 mode. |
|--------------+---------------------------------------------|
| #CLS=8 | Modem will operate in voice mode. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MNP10 |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] #Kn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects whether the modem will attempt to |
| | make an MNP10 connection. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| #K0 | MNP10 disabled. |
|--------------+---------------------------------------------|
| í #K1 | MNP10 enabled. |
|--------------+---------------------------------------------|
| #K2 | MNP10 enabled on cellular connections only. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MNP10 LINK NEGOTIATION |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %Hn [cmds] |
|--------------+---------------------------------------------|
| Description: | Sets the speed at which MNP10 link |
| | negotiation will occur. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í %H0 | Link will be negotiated at speed set by B |
| | command. |
|--------------+---------------------------------------------|
| %H1 | Link will be negotiated at 1200bps. |
|--------------+---------------------------------------------|
| %H2 | Link will be negotiated at 4800bps. |
|--------------+---------------------------------------------|
| %H3 | Link will be negotiated at 4800bps. |
|--------------+---------------------------------------------|
| %H9 | Link will be negotiated at speed set by B |
| | command and modem will not fall forward. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| ON-LINE |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] On |
|--------------+---------------------------------------------|
| Description: | Instructs the modem to return to the |
| | on-line state. |
|--------------+---------------------------------------------|
| Note: | O3 through O7 are only valid for V.32 and |
| | V.32bis connections. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| O0 | Return to on-line state. |
|--------------+---------------------------------------------|
| O1 | Return to on-line state and initiate |
| | retrain sequence. |
|--------------+---------------------------------------------|
| O2 | Initiate retrain sequence. |
|--------------+---------------------------------------------|
| O3 | Re-negotiate speed to 4800bps and return to |
| | on-line state. |
|--------------+---------------------------------------------|
| O4 | Re-negotiate speed to 7200bps and return to |
| | on-line state. |
|--------------+---------------------------------------------|
| O5 | Re-negotiate speed to 9600bps and return to |
| | on-line state. |
|--------------+---------------------------------------------|
| O6 | Re-negotiate speed to 12Kbps and return to |
| | on-line state. |
|--------------+---------------------------------------------|
| O7 | Re-negotiate speed to 14.4Kbps and return |
| | to on-line state. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| V.34 MODE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] *Cn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects whether the modem will use V.34 |
| | mode. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í *C0 | V.34 mode enabled. |
|--------------+---------------------------------------------|
| *C1 | V.34 mode disabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VOICE - DEAD MAN TIMEOUT |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S105=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 30 |
|--------------+---------------------------------------------|
| Range: | 0 - 255 |
|--------------+---------------------------------------------|
| Unit: | 1 second |
|--------------+---------------------------------------------|
| Description: | The function of this command is |
| | unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VOICE DEVICE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] #VLS=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects the I/O device for the DSP chip. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| #VLS=1 | Telephone handset used for voice I/O. |
|--------------+---------------------------------------------|
| #VLS=2 | Internal speaker only used for voice I/O. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VOICE - LOCAL SERIAL PORT SPEED |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] #BDR=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 0 |
|--------------+---------------------------------------------|
| Range: | 0 - 48 |
|--------------+---------------------------------------------|
| Unit: | 2400bps |
|--------------+---------------------------------------------|
| Description: | Sets the speed of the local serial port |
| | when in voice mode. A value of 0 indicates |
| | that the modem should auto-detect the |
| | correct serial port speed. |
+------------------------------------------------------------+
See NETCOMM LIMITED SOCKET ROCKET 336 (CM3660) for a full command
summary.