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Cisco Bug: CSCun62752 - MOH and ANN devices do not reserve enough resources for duplex media

Last Modified

Jul 03, 2017

Products (1)

  • Cisco Unified Communications Manager (CallManager)

Known Affected Releases

9.1(2.11021.2)

Description (partial)

Symptom:
Media setup (Open Logical Channel / Start Talking) fails on the MOH/ANN server and returns an error on the StationOpenReceiveChannelAck or StationStartMediaTransmissionAck.

Conditions:
UCM Service Parameter for "Duplex Media Connections" is enabled (true).
The number of calls in progress which are currently listening to MOH is around half of the MOH call count.
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