[Freeswitch-dev] Using a modem to connect ordinary phones

Michael Jerris mike at jerris.com
Tue Oct 27 22:22:33 PDT 2009

You are better off creating a zaptel driver than re-creating all that  
work that has already been done.


On Oct 28, 2009, at 1:05 AM, Alex To wrote:

> Hi,
> I found the same topic created 2 years back in Oct 2007 but it  
> doesn’t seem to have the answer yet.
>  I am quite new to FS and having a hard time reading the  
> documentation. Someone could tell me: how would I use a modem and  
> develop an Endpoint in FS that I could bridge the call from VoIP to  
> PSTN. I am a hardware engineer, I am developing this modem and would  
> want to use it with FS. I know that I could simply buy a VoIP  
> Gateway or a zaptel compatible card and use OpenZap.
> Could someone point me out the direction for the following matters:
> 1.       I feel that I need to develop an Endpoint module, like  
> mod_sofia, mod_iax... that controls my modem so I could bridge the  
> call from VoIP to PSTN ? If that is correct, could someone point me  
> the documentation to start reading about Endpoint interface …?
> 2.       Is there any similar module developed before about  
> controlling a modem using AT Command
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