Subj : Re: VOIP Modem
To   : Warpslide
From : Grant Weasner
Date : Mon Sep 02 2024 21:44:15

On 01 Sep 2024, Warpslide said the following...
 
 Wa> On 01 Sep 2024, Grant Weasner said the following...
 Wa> 
 Wa>  GW> what equipment and setup are you using with your USB modem? 
 Wa>  GW> 
 Wa>  GW> I'm trying to get my own USR 56k to connect over VOIP through my cisc
 Wa>  GW> sp122 ata, but no handshake completes. 
 Wa> 
 Wa> Hi Grant,
 Wa> 
 Wa> I don't have this setup anymore, but I was using a StarTech ICUSB232 USB
 Wa> to Serial adapter plugged into a USR Sportster 56k modem.  For the phone
 Wa> line I was using a Cisco SPA112 provisioned with service from voip.ms.
 Wa> 
 Wa> I remember there were a couple of settings I needed to change on the
 Wa> SPA112, making sure the firmware was updated (1.4.1 SR5) and some
 Wa> changes under audio configuration to get it to connect at all.
Ok this is great info. I think the cisco SPA112 is very similar to the cisco SPA122. I saw on some video on youtube a couple years ago someone using the SPA112 with their modems and it seemed to work. 

I got my SPA122 from a computer recycler and it was configured as a FAX modem and I think it was for SEATAC airport. However I had to hack it to get the admin login back to stock, and so I could reset the ATA. This because of the fax modem setup this tells me a modem had to have answered the line. 

One thing I'm not sure of about the ATA .. having 2 lines active are they able to actually talk to each other? I only have 1 phone handset so I can't test that part. 


But your configuration gives me hope. Asterisk is a system that takes awhile to figure out. 


 Wa> 
 Wa> I believe I used the settings from this page:
 Wa> https://gekk.info/articles/ata-config.html#Troubleshooting
 Wa> 
 Wa> Troubleshooting Section 2 are the settings you're after.

I will take a look at the link and see if I can find the info. 


Thanks for the information Warpslide. :)

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