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Cisco Bug: CSCuj29479 - Directed call park both calls remain on hold cannot park calls

Last Modified

Feb 17, 2016

Products (1)

  • Cisco Unified Communications Manager (CallManager)

Known Affected Releases

9.1(1.21032.1) 9.1(1.98000.47)

Description (partial)

Symptom:
A SIP phone attempts to park a call using directed call park by pressing transfer and dialing the directed call park number.  After pressing transfer a second time to complete parking the call, both calls remain on the display in a held state (hold icon).

Conditions:
This issue occurs when the phone parking the call is SIP and multicast MoH is allocated during the park feature invocation.

The Cisco CallManager traces when set to detailed show that there is 1 audio M line in the SDP.

02064555.001 |17:23:02.199 |AppInfo |DET-SDPMsg-setSdpLineInfoMap: MLINE_AUDIO numMlines= 1 
02064555.002 |17:23:02.199 |AppInfo |DET-SIPInterface-(2029)::BFCP is disabled:Filter out Presentation Video and BFCP 
02064555.003 |17:23:02.199 |AppInfo |DET-SDPMsg-getBWbpsFromSession: 0 0,0,0 
02064555.004 |17:23:02.199 |AppInfo |DET-SDPMsg-getBWbpsFromSession: No session level bw modifiers! 
02064555.005 |17:23:02.199 |AppInfo |DET-SDPMsg-()::setTIASforDO, sessionBWbps=64000, receivedSessionBWbps=0, calculatedAudioTIAS=64000 
02064555.006 |17:23:02.199 |AppInfo |DET-SDPMsg-()::setSessionBandwidthModifiers(bw=64000, action=0) - session(bitmask=0x0,tias=0,as=0,ct=0)


Then the number of audio M lines becomes 0 causing the call park operation to fail.

02064555.007 |17:23:02.199 |AppInfo |!!ERROR!! -SDPMsg- - getAudioMLine, count=0 but idx=0, returning System Default 
02064555.008 |17:23:02.199 |AppInfo |!!ERROR!! -SDPMsg- - getAudioMLine, count=0 but idx=0, returning System Default 
02064555.009 |17:23:02.199 |AppInfo |SIPInterface::resetRemoteIpAddressForMLines 
02064555.010 |17:23:02.199 |AppInfo |!!ERROR!! -SDPMsg- - getAudioMLine, count=0 but idx=0, returning System Default
02064555.011 |17:23:02.199 |AppInfo |!!ERROR!! -SIPInterface-(2029)::prepareAndSendSDPAnswer, ERROR, unexpected no audio line?
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