> If I receive an INVITE with fmtp from a peer, it won't be used to build the > INVITE to the egress right?
With Asterisk 13/chan_sip, it is possible to copy over the fmtp - even 1:1 - I do this here with AMR-WB. I created a res/res_format_attr_ and adopted format_parse_sdp_fmtp/format_generate_sdp_fmtp, just like the Opus sample. Thanks to Asterisk 13, the selected codec of the ingress gets the first priority for the egress. > Is there any function [to] act like a proxy? Mhm. I was not able to do that because here, Asterisk removed unknown codecs and adds its allowed ones after the one selected for the ingress. So the lines m=, a/v/t=, and their order are going to be different. But as stated, copying over (one!) fmtp per format is possible. By the way, which codec/format are you about? -- _____________________________________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-dev mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-dev