I've begun playing with rtpengine (git e0957d1) a little and in my testing: CSipSimple <-> Kamailio/rtpengine <-> Asterisk 12/13 I see the following error when parsing SDP from the Asterisk side, possibly related to the use of the FQDN in the Origin: Got valid command from 127.0.0.1:44407: answer - { "sdp": "v=0 o=- 3617462201 3617462204 IN IP4 hostname.example.com s=Asterisk <snip> Error parsing SDP at offset 5: Error parsing o= line Protocol error in packet from 127.0.0.1:44407: Failed to parse SDP [d3:sdp353:v=0 o=- 3617462201 3617462204 IN IP4 hostname.example.com s=Asterisk <snip> It was brought up here, https://issues.asterisk.org/jira/browse/ASTERISK-23994 and it appears that a FQDN should be supported in the SDP Origin. Is this the case, or might it be something else? -- Anthony - https://messinet.com/ - https://messinet.com/~amessina/gallery 8F89 5E72 8DF0 BCF0 10BE 9967 92DC 35DC B001 4A4E