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Cisco Bug: CSCul02171 - H323, GW incorrectly sends OLC reject LCN 1 for the OLC already ACKed.

Last Modified

Feb 27, 2018

Products (1)

  • Cisco Unified Communications Manager (CallManager)

Known Affected Releases


Description (partial)

Very intermittent outgoing fax calls failure for the flow : 

Kofax fax server -- SIP -- CUCM -- H323 -- GW -- PRI -- PSTN

GW is sending OLC for the FAX before sending CLCACK for the already opened audio channel.

Intermittently, no patterns found.
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