I tried that and while it did hit the dialplan, freeswitch sends a “500 No session set by user” instead of the 200 OK offering an SDP. Here is the scenario: - I send an INVITE without SDP to Freeswitch - the dialplan matches an extension based on headers I have set - the extension initiates an outbound socket connection to my application - my application issues the ‘answer’ command - freeswitch logs the following: 8c2094e3-5298-44af-a759-a11932583e4c 2016-12-13 13:48:25.082197 [DEBUG] switch_ivr.c:623 sofia/drachtio_mrf/nobody@5070 Command Execute answer() 8c2094e3-5298-44af-a759-a11932583e4c EXECUTE sofia/drachtio_mrf/nobody@5070 answer() 8c2094e3-5298-44af-a759-a11932583e4c 2016-12-13 13:48:25.082197 [DEBUG] mod_sofia.c:762 3PCC-PROXY, Sent a 200 OK, waiting for ACK - but then sends a 500 (and no 200 OK was ever sent). full pastebin at http://pastebin.com/bhFi3zY2 <http://pastebin.com/bhFi3zY2> Any ideas? And for background, here is what I am trying to achieve: - send an INVITE without SDP, get freeswitch to offer an SDP with all codecs - establish an outbound socket to control that channel - send an ACK with a blackhole SDP (per https://tools.ietf.org/search/rfc3725 <https://tools.ietf.org/search/rfc3725>) - later re-INVITE to a far end SDP - bridge this channel to another one (via event socket, uuid_bridge command) If there is a specific flavor of 3pcc that freeswitch supports (e.g. the RFC above describes 4 different possibilities), I could adjust my code to accordingly. Dave On Dec 12, 2016, at 10:25 PM, Anthony Minessale <anthony.minessale@gmail.com> wrote: try setting it to "proxy" instead of "true" On Mon, Dec 12, 2016 at 8:58 PM, Dave Horton <daveh@beachdognet.com <mailto:daveh@beachdognet.com>> wrote: I notice that when I set: <param name="enable-3pcc" value="true”/> and then send an INVITE to Freeswitch with no SDP, Freeswitch responds with 200 OK and an SDP offering all available codecs. That is good, but it also appears that it does not evaluate the dialplan at all - simply sends out the 200 OK. Is this by design? My intent was to send an INVITE with no SDP, execute answer through my event socket program and thereafter be able to issue commands. It seems like this is not possible? Or am I doing something wrong? Dave _________________________________________________________________________ Professional FreeSWITCH Consulting Services: consulting@freeswitch.org <mailto:consulting@freeswitch.org> http://www.freeswitchsolutions.com <http://www.freeswitchsolutions.com/> Official FreeSWITCH Sites http://www.freeswitch.org <http://www.freeswitch.org/> http://confluence.freeswitch.org <http://confluence.freeswitch.org/> http://www.cluecon.com <http://www.cluecon.com/> FreeSWITCH-users mailing list FreeSWITCH-users@lists.freeswitch.org <mailto:FreeSWITCH-users@lists.freeswitch.org> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users <http://lists.freeswitch.org/mailman/listinfo/freeswitch-users> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users <http://lists.freeswitch.org/mailman/options/freeswitch-users> http://www.freeswitch.org <http://www.freeswitch.org/> -- Anthony Minessale II ♬ @anthmfs ♬ @FreeSWITCH ♬ ☞ http://freeswitch.org/ <http://freeswitch.org/> ☞ http://cluecon.com/ <http://cluecon.com/> ☞ http://twitter.com/FreeSWITCH <http://twitter.com/FreeSWITCH> ☞ irc.freenode.net <http://irc.freenode.net/> #freeswitch ☞ http://freeswitch.org/g+ <http://freeswitch.org/g+> ClueCon Weekly Development Call ☎ sip:888@conference.freeswitch.org <mailto:sip%3A888@conference.freeswitch.org> ☎ +19193869900 https://www.youtube.com/watch?v=9XXgW34t40s <https://www.youtube.com/watch?v=9XXgW34t40s> https://www.youtube.com/watch?v=NLaDpGQuZDA <https://www.youtube.com/watch?v=NLaDpGQuZDA> _________________________________________________________________________ Professional FreeSWITCH Consulting Services: consulting@freeswitch.org http://www.freeswitchsolutions.com Official FreeSWITCH Sites http://www.freeswitch.org http://confluence.freeswitch.org http://www.cluecon.com FreeSWITCH-users mailing list FreeSWITCH-users@lists.freeswitch.org http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org