search for: 00021a1f

...hone-event/8000 a=fmtp:101 0-16 a=silenceSupp:off - - - - a=ptime:20 a=sendrecv <-------------> [2020-09-19 23:42:19] VERBOSE[2637] chan_sip.c: --- (18 headers 14 lines) --- [2020-09-19 23:42:19] VERBOSE[2637] chan_sip.c: Sending to 41.11.11.12:5060 (NAT) [2020-09-19 23:42:19] VERBOSE[2637][C-00021a1f] chan_sip.c: Sending to 41.11.11.12:5060 (NAT) [2020-09-19 23:42:19] VERBOSE[2637][C-00021a1f] chan_sip.c: Using INVITE request as basis request - 7030be5a09d89a9543234da051897a49 at 41.11.11.11 [2020-09-19 23:42:19] VERBOSE[2637][C-00021a1f] chan_sip.c: Found peer 'Upstream' for '+2788...

Hi, We have a scenario where inbound calls from an upstream provider (chan_sip) sent downstream (chan_iax2) negotiates only g729 yet RTP media contains g711. Both the upstream and downstream trunks are limited to only offering g729 whilst the initial invite from our upstream provider offers both g711 and g729. Asterisk presumably simply forwards the media from iax2 trunk encapsulation to sip

...session c=IN IP4 41.11.11.11 t=0 0 m=audio 13918 RTP/AVP 18 8 101 a=rtpmap:18 G729/8000 a=fmtp:18 annexb=no a=rtpmap:8 PCMA/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-16 a=silenceSupp:off - - - - a=ptime:20 a=sendrecv <-------------> <snip> [2020-09-19 23:42:19] VERBOSE[2637][C-00021a1f] chan_sip.c: Capabilities: us - (g722|alaw|g729), peer - audio=(alaw|g729)/video=(nothing)/text=(nothing), combined - (alaw|g729) <snip> [2020-09-19 23:42:19] VERBOSE[15153][C-00021a1f] pbx.c: Executing [0100000000 at incoming:1] Set("SIP/Upstream-00021a0d", "1?SIP_CODEC=g729&q...

...session c=IN IP4 41.11.11.11 t=0 0 m=audio 13918 RTP/AVP 18 8 101 a=rtpmap:18 G729/8000 a=fmtp:18 annexb=no a=rtpmap:8 PCMA/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-16 a=silenceSupp:off - - - - a=ptime:20 a=sendrecv <-------------> <snip> [2020-09-19 23:42:19] VERBOSE[2637][C-00021a1f] chan_sip.c: Capabilities: us - (g722|alaw|g729), peer - audio=(alaw|g729)/video=(nothing)/text=(nothing), combined - (alaw|g729) <snip> [2020-09-19 23:42:19] VERBOSE[15153][C-00021a1f] pbx.c: Executing [0100000000 at incoming:1] Set("SIP/Upstream-00021a0d", "1?SIP_CODEC=g729&q...