That is exactly what I am doing now. It's nice knowing somebody is doing the same thing. The only difference is I am developing for Windows platform. The modem that I am
developing uses USB/Serial Port that accepts AT command. Still reading how should I control audio I/O as to be honest I just got to know FreeSwitch for less than a week. I will be very grateful if you could share your experience. Regards Alex To -----Original Message----- From: freeswitch-dev-boun...@lists.freeswitch.org [mailto:freeswitch-dev-boun...@lists.freeswitch.org] On Behalf Of Giovanni Maruzzelli Sent: Thursday, October 29, 2009 1:06 AM To: freeswitch-dev@lists.freeswitch.org Subject: Re: [Freeswitch-dev] Using a modem to connect ordinary phones On Wed, Oct 28, 2009 at 6:37 AM, Alex To <tonhud...@gmail.com> wrote: > The problem is I could simply get everything working by buying a zaptel > compatible card or a VoIP Gateway. However I would like to use the modem > that I am developing since it does provides some additional features. > It depends on how your modem behave... Eg: in the past I developed a channel driver that was using voicemodems and ALSA to interface with PSTN: AT command for call control and ALSA for audio I/O. If you are in this situation (your modem accept AT commands, and has a way to do audio I/O through ALSA or some other interface), then maybe you would like to wait a little bit until I release a new endpoint for FreeSWITCH that do this for GSM, and just use that endpoint with little or no customization. -giovanni > > > Does that mean I could start my way reading about Zaptel and develop a > modified version of Zaptel to control my modem ? > > > > Thanks for pointing me the way. > > > > Regards > > > > Alex To > > > > From: freeswitch-dev-boun...@lists.freeswitch.org > [mailto:freeswitch-dev-boun...@lists.freeswitch.org] On Behalf Of Michael > Jerris > Sent: Wednesday, October 28, 2009 1:23 PM > To: freeswitch-dev@lists.freeswitch.org > Subject: Re: [Freeswitch-dev] Using a modem to connect ordinary phones > > > > You are better off creating a zaptel driver than re-creating all that work > that has already been done. > > > > Mike > > > > 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 doesnt 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 > > > > _______________________________________________ > FreeSWITCH-dev mailing list > FreeSWITCH-dev@lists.freeswitch.org > http://lists.freeswitch.org/mailman/listinfo/freeswitch-dev > UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-dev > http://www.freeswitch.org > > -- Sincerely, Giovanni Maruzzelli Cell : +39-347-2665618 _______________________________________________ FreeSWITCH-dev mailing list FreeSWITCH-dev@lists.freeswitch.org http://lists.freeswitch.org/mailman/listinfo/freeswitch-dev UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-dev http://www.freeswitch.org _______________________________________________ FreeSWITCH-dev mailing list FreeSWITCH-dev@lists.freeswitch.org http://lists.freeswitch.org/mailman/listinfo/freeswitch-dev UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-dev http://www.freeswitch.org
