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Cisco Bug: CSCtb62622 - 181 with PAID redirection number and reason header

Last Modified

Nov 03, 2012

Products (3)

  • Cisco Unified Communications Manager (CallManager)
  • Cisco Unity Connection Version 7.1
  • Cisco Unified Communications Manager Version 7.1

Known Affected Releases


Description (partial)


If a PSTN incoming call from A via PGW to CUCM in SIP is forwarded by an IP Phone (B) to an IP Phone (C), the redirection number (C) and redirection reason (busy, unconditional, no reply) cannot be provided by PGW to PSTN in SS7 ACM message (for busy, unconditional) or CPG message (for no reply). This information is coming too late from CUCM in SIP UPDATE and should come ideally in SIP 181. 


PSTN (A) calls IP Phone (B) which forwards to IP Phone (C)
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