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Cisco Bug: CSCta66956 - GW SIP needs send Reason header in 183 for ISDN PRORGESS msg

Last Modified

Jan 31, 2017

Products (1)

  • Cisco IOS

Known Affected Releases


Description (partial)


When PSTN networks sends ISDN PROGRESS message with a cause code, GW SIP sends 183 message without  a Reason header that contains Q.850 reason code. 


Normal operation.
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