Hey guys,
I have the following problem:
I have a business sip-trunk from Vodafone Germany. On a few incoming calls I see that there is a mistake in the incoming INVITE:
As you can see there is m=audio 55004 RTP/AVP
96 9 8 101 102
So an rtpmap for 96, 101 and 102 is required.
Unfortunately the 96 mapping is missing. I would expect to ignore the 96 codec and work with one of the other but instead PJSIP is returning BAD REQUEST and the call drops.
<— History Entry 569 Received from 88.79.204.9:5060 at 1563208936 —>
INVITE sip:MY_EXTERNAL_NUMBER@xxxxxxxxxxxxxxxxxxxxxxxxxxxx:5060 SIP/2.0
Via: SIP/2.0/UDP 88.79.204.9:5060;received=88.79.204.9;branch=z9hG4bKrkmtgr009837vfa01600.1;origin=172.19.116.80
To: sip:MY_EXTERNAL_NUMBER@xxxxxxxxxxxxxxxxxxxxxxxx;user=phone
From: sip:CALLING_NUMBER@xxxxxxxxxxxxxxx;user=phone;tag=SDvao3a01-e398456e
Call-ID: SDvao3a01-7b27dc6a53070acda0d03a904428df03-ct4u830000
CSeq: 1 INVITE
Max-Forwards: 60
Contact: sip:CALLING_NUMBER@88.79.204.9:5060;transport=udp
Date: Mon, 15 Jul 2019 18:42:16 GMT
Allow: INVITE, ACK, PRACK, CANCEL, BYE, OPTIONS, MESSAGE, NOTIFY, UPDATE, REGISTER, INFO, REFER, SUBSCRIBE
Supported: resource-priority
P-Asserted-Identity: sip:CALLING_NUMBER@xxxxxxxxxxxxxxx;user=phone
P-Asserted-Identity: tel:CALLING_NUMBER
Accept: application/sdp
P-Early-Media: supported
Content-Type: application/sdp
Content-Length: 289
Content-Type: application/sdp
Content-Length: 289
v=0
o=- 0 0 IN IP4 88.79.204.9
s=IMSS
c=IN IP4 88.79.204.9
t=0 0
m=audio 55004 RTP/AVP 96 9 8 101 102
a=rtpmap:101
telephone-event/8000
a=rtpmap:102
telephone-event/16000
a=ptime:20
a=maxptime:30
a=fmtp:96 mode-set=0,1,2; mode-change-period=2; mode-change-neighbor=1; max-red=0
<— History Entry 570 Sent to 88.79.204.9:5060 at 1563208936 —>
SIP/2.0 400 Bad Request
Via: SIP/2.0/UDP 88.79.204.9:5060;rport=5060;received=88.79.204.9;branch=z9hG4bKrkmtgr009837vfa01600.1;origin=172.19.116.80
Call-ID: SDvao3a01-7b27dc6a53070acda0d03a904428df03-ct4u830000
From: sip:CALLING_NUMBER@xxxxxxxxxxxxxxx;user=phone;tag=SDvao3a01-e398456e
To: sip:MY_EXTERNAL_NUMBER@xxxxxxxxxxxxxxxxxxxxxxxx;user=phone;tag=z9hG4bKrkmtgr009837vfa01600.1
CSeq: 1 INVITE
Warning: 399 SIP “Missing SDP rtpmap
for dynamic payload type (PJMEDIA_SDP_EMISSINGRTPMAP)”
Server: FPBX-14.0.13.4(15.4.0)
Content-Length: 0
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Marc Tschech
m.tschech@xxxxxxxxxxxxxxxx
Phone: +49 (211) 415559-0 | Fax: +49 (211) 415559-29
www.nucleusultrasonics.com
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NUCLEUS GmbH • Tichauer Weg 32 • 40231 Düsseldorf • Germany
Geschäftsführer: M. Tschech
Amtsgericht Düsseldorf HRB 5540
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