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Cisco Bug: CSCus73397 - 88XX /99xx/DX phone sending incorrect codec on Call Recording leg

Last Modified

Jul 17, 2018

Products (2)

  • Cisco IP Phone 8800 Series
  • Cisco DX70

Known Affected Releases

10.2(2) 10.3(1)

Description (partial)

In the Invite to phone CUCM sends only PCMU as the codec.
01/15/2015 10:22:18.048 |//SIP/SIPTcp/wait_SdlSPISignal: Outgoing SIP TCP message to on port 52160 index 24976 
INVITE sip:e3946c0d-8d6d-e8b0-2f21-11352dcc4e9c@;transport=tcp SIP/2.0

o=CiscoSystemsCCM-SIP 17605699 1 IN IP4
s=SIP Call
c=IN IP4
t=0 0
m=audio 4000 RTP/AVP 0
a=rtpmap:0 PCMU/8000

Phone reverts back with codec that CUCM has not even asked for
1/15/2015 10:22:18.327 |//SIP/SIPTcp/wait_SdlReadRsp: Incoming SIP TCP message from on port 52160 index 24976 with 1279 bytes:
SIP/2.0 200 OK
o=Cisco-SIPUA 11343 0 IN IP4
s=SIP Call
t=0 0
m=audio 32544 RTP/AVP 102 101
c=IN IP4
a=rtpmap:102 L16/16000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15

Only happens when 88XX model phone is running 10-2-2-16, does not happen with firmware 10-2-1-16 and the call is a Ad-hoc conference.
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