Anthony, Could you elaborate a little on what led to your selection of Sofia-SIP for SIP trunking in FreeSwitch? What did you like about Sofia-SIP? What didn't you like about the alternatives? Do you know of any online comparison of features, strengths and weaknesses, for the several SIP stack alternatives? Thanks. Jim ----- Original Message ---- From: Anthony Minessale <anthony.minessale@gmail.com> To: freeswitch-dev@lists.freeswitch.org Sent: Thursday, May 15, 2008 9:27:56 AM Subject: Re: [Freeswitch-dev] Sofia-SIP for SIP trunking Well it was the 5th SIP stack we tried including all the other ones on your list and we have some people doing 400+ calls per second so it's probably a good choice. On Thu, May 15, 2008 at 8:54 AM, Jim Thomas <jimthomasembedded@yahoo.com> wrote: Hello, Is Sofia-SIP a good choice to add SIP trunking support to a PBX? Are there any known limitations or weaknesses relative to alternatives such as sipX, reSIProcate, etc? Is SIP trunking based on Sofia-SIP interoperable with a broad range of SIP trunking service providers? Thanks. Jim