On Sun, Nov 24, 2013 at 7:31 AM, Roamer Roamer <roamer1006@gmail.com> wrote:

Hi all, I'm new to freeswitch and want to learn SIP development, I have a question: what's protocol is using for the SIP PBX(freeswitch, asterisk, sipx) connect to SIP Trunking? In freeswitch source code, which part source code is for connect to SIP trunking ?

That would be mod_sofia in src/mod/endpoints/mod_sofia, particularly the "gateway" sections in sofia.c or sofia_glue.c (gateway is a SIP trunk in FreeSWITCH).

Moises Silva
Manager, Software Engineering

msilva@sangoma.com

Sangoma Technologies

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