[Asterisk-Users] GSM to ISDN or TAPI

[Chris Lee]

Storer, Darren wrote:
> Hi Chris,
> 
> CL> All I want is two GSM lines that look like voice modems to
> CL> the PC and provide full telephony interface, that is DTMF
> CL> both ways CLI and a few other bits and pieces.
> 
> We use the Nokia 22:
> 
> http://www.nokia.com/nokia/0,,56024,00.html
> 
> They have worked well providing both telephony applications on remote sites
> and SMS support for Broadcast work in the UK (serial AT command interface).
> 
> If you don't mind single band (900 or 1800 MHz GSM) operation there is an
> older device (Nokia Premicell) that can be sourced cheaply from eBay:
> 
> http://www.nokia.com/cda1/0,1080,2700,00.html
> 

Does the incoming DTMF and voice work over the serial interface with the 22?
I had a Nokia 32 for test and could not get it to return DTMF, it has AT 
commands to generate DTMF and to receive CLI but I could not get it into 
voice mode or get DTMF out of it.

Thanks for your help

Chris.