Guest

Preview Tool

Cisco Bug: CSCus17793 - SIP Layer Unable to handle 180 and 200 ok with SDP back to back

Last Modified

Nov 14, 2015

Products (8)

  • Cisco Unified Communications Manager (CallManager)
  • Cisco Business Edition 5000 Version 8.6
  • Cisco Intercompany Media Engine
  • Cisco Business Edition 3000 Version 8.6
  • Cisco Unified Communications Manager Version 8.6
  • Cisco Business Edition 6000 Version 8.6
  • Cisco Unity Connection Version 8.6
  • Cisco Unified Communications Manager Session Management Edition

Known Affected Releases

8.6(2)

Description (partial)

Symptom:
We get H225 Alert and H225 Connect coming back to back.
SIP layer also tries to do the same. 
053151440 |2014/12/09 03:59:18.407 |100 |SdlSig    |SIPAlertReq                            |wait                           |SIPHandler(7,100,71,1)           |SIPCdpc(7,100,74,21715)          |7,100,21,35516.2^10.52.245.41^Port 42024                                                             |[T:N-H:0,N:2,L:0,V:0,Z:0,D:0]  SignalInfo= SIP180Sdp CcbId= 3591822 --TransType=1 --TransSecurity=0 PeerAddr = 171.70.146.234:39862
03:59:18.407 |//SIP/Stack/Info/0xb4c3ca20/Enqueueing event SIPSPI_EV_CC_CALL_ALERTING as Acknowledgment is not yet received..|7,100,21,35516.2^10.52.245.41^Port 42024
03:59:18.407 |//SIP/Stack/Info/0xb4c3ca20/Event SIPSPI_EV_CC_CALL_ALERTING queued on buffer queue.|7,100,21,35516.2^10.52.245.41^Port 42024

053151441 |2014/12/09 03:59:18.407 |100 |SdlSig    |SIPConnectReq                          |wait                           |SIPHandler(7,100,71,1)           |SIPCdpc(7,100,74,21715)          |7,100,21,35516.2^10.52.245.41^Port 42024                                                             |[T:N-H:0,N:1,L:0,V:0,Z:0,D:0]  SignalInfo= SIP200InviteSdp CcbId= 3591822 --TransType=1 --TransSecurity=0 PeerAddr = 171.70.146.234:39862 rtp IP:Port = :4000 
03:59:18.408 |//SIP/Stack/Info/0xb4c3ca20/Enqueueing event SIPSPI_EV_CC_CALL_CONNECT as Acknowledgment is not yet received..|7,100,21,35516.2^10.52.245.41^Port 42024
03:59:18.408 |//SIP/Stack/Info/0xb4c3ca20/Event SIPSPI_EV_CC_CALL_CONNECT queued on buffer queue.|7,100,21,35516.2^10.52.245.41^Port 42024

Conditions:
other side sending alert and connect within 16  mili sec
Bug details contain sensitive information and therefore require a Cisco.com account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.