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Cisco Bug: CSCus84696 - Voice gateway not sending ISDN USER_INFO for SIP Info to update number

Last Modified

Feb 12, 2018

Products (71)

  • Cisco IOS
  • Cisco 1905 Serial Integrated Services Router
  • Cisco 888W Integrated Services Router
  • Cisco 892W Integrated Services Router
  • Cisco C892FSP Integrated Services Router
  • Cisco 886VA-CUBE Integrated Services Router
  • Cisco 819 Hardened Integrated Services Router
  • Cisco 2951 Integrated Services Router
  • Cisco VG204XM Analog Voice Gateway
  • Cisco C897VA Integrated Services Router
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Known Affected Releases


Description (partial)

Phone 1 --  PBX (HO) -- ISDN QSIG -- Cisco GW (HO) -- SIP -- Cisco GW (Remote) -- ISDN QSIG --PBX (Remote) -- IP phone

Problem Description: 
Call is made from Head Ooffice (HO) to Remote site. Remote site user transfers calls to another user located on the same remote site. Name and number is not updated on the HO extension after the transfer.

+ After call is transferred remote PBX sends ISDN USER_INFO with UUI to Remote Cisco GW. On receiving UUI the remote gateway sends SIP INFO to the originating gateway with qsig information.

+ The originating gateway (HO) receives the SIP Info from terminating gateway but the originating gateway is not sending ISDN Info to the originating gateway to update the name and number.

+ "signaling forward unconditional" is configured.
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