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Cisco Bug: CSCus57110 - CUBE not forwarding the pre connnect announcement

Last Modified

Aug 09, 2018

Products (71)

  • Cisco IOS
  • Cisco 861W Integrated Services Router
  • Cisco 892W Integrated Services Router
  • Cisco 886VA-CUBE Integrated Services Router
  • Cisco ASR 901-6CZ-F-D Router
  • Cisco 1905 Serial Integrated Services Router
  • Cisco ASR 901-6CZ-FS-D Router
  • Cisco 2951 Integrated Services Router
  • Cisco 888W Integrated Services Router
  • Cisco 881SRSTW Integrated Services Router
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Known Affected Releases

15.1(4)M9 15.2(4)S4.14 15.3(3)S 15.4(3)S 15.5(1.10)S

Description (partial)

CUBE is not forwarding the pre connect announcement / In band media from SIP provider to the calling side if CUBE receives back to back 180 Ringing messages (first one without SDP).

Message flow with ITSP:

086863: Jan  7 06:01:16.868: //321312/9625E3800000/SIP/Msg/ccsipDisplayMsg:
INVITE sip:0227332707@ SIP/2.0

086864: Jan  7 06:01:16.872: //321312/9625E3800000/SIP/Msg/ccsipDisplayMsg:
SIP/2.0 100 Trying

086865: Jan  7 06:01:18.472: //321312/9625E3800000/SIP/Msg/ccsipDisplayMsg:
SIP/2.0 180 Ringing
Content-Length: 0

086873: Jan  7 06:01:18.500: //321312/9625E3800000/SIP/Msg/ccsipDisplayMsg:
SIP/2.0 180 Ringing
Content-Type: application/sdp
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