diff --git a/channels/chan_sip.c b/channels/chan_sip.c index 0a5caecb96..38cdd53750 100644 --- a/channels/chan_sip.c +++ b/channels/chan_sip.c @@ -10912,22 +10912,25 @@ static int process_sdp(struct sip_pvt *p, struct sip_request *req, int t38action if (portno != -1 || vportno != -1 || tportno != -1) { /* We are now ready to change the sip session and RTP structures with the offered codecs, since they are acceptable */ + unsigned int framing; ast_format_cap_remove_by_type(p->jointcaps, AST_MEDIA_TYPE_UNKNOWN); ast_format_cap_append_from_cap(p->jointcaps, newjointcapability, AST_MEDIA_TYPE_UNKNOWN); /* Our joint codec profile for this call */ ast_format_cap_remove_by_type(p->peercaps, AST_MEDIA_TYPE_UNKNOWN); ast_format_cap_append_from_cap(p->peercaps, newpeercapability, AST_MEDIA_TYPE_UNKNOWN); /* The other side's capability in latest offer */ p->jointnoncodeccapability = newnoncodeccapability; /* DTMF capabilities */ + tmp_fmt = ast_format_cap_get_format(p->jointcaps, 0); + framing = ast_format_cap_get_format_framing(p->jointcaps, tmp_fmt); /* respond with single most preferred joint codec, limiting the other side's choice */ if (ast_test_flag(&p->flags[1], SIP_PAGE2_PREFERRED_CODEC)) { - unsigned int framing; - - tmp_fmt = ast_format_cap_get_format(p->jointcaps, 0); - framing = ast_format_cap_get_format_framing(p->jointcaps, tmp_fmt); ast_format_cap_remove_by_type(p->jointcaps, AST_MEDIA_TYPE_UNKNOWN); ast_format_cap_append(p->jointcaps, tmp_fmt, framing); - ao2_ref(tmp_fmt, -1); } + if (!ast_rtp_codecs_get_framing(&newaudiortp)) { + /* Peer did not force us to use a specific framing, so use our own */ + ast_rtp_codecs_set_framing(&newaudiortp, framing); + } + ao2_ref(tmp_fmt, -1); } /* Setup audio address and port */ @@ -11436,6 +11439,7 @@ static int process_sdp_a_audio(const char *a, struct sip_pvt *p, struct ast_rtp_ if (framing && p->autoframing) { ast_debug(1, "Setting framing to %ld\n", framing); ast_format_cap_set_framing(p->caps, framing); + ast_rtp_codecs_set_framing(newaudiortp, framing); } found = TRUE; } else if (sscanf(a, "rtpmap: %30u %127[^/]/%30u", &codec, mimeSubtype, &sample_rate) == 3) {