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Cisco Bug: CSCsz61439 - Phone transmits voice packets while receiving MoH over tandem SIP trunks

Last Modified

Jul 06, 2017

Products (1)

  • Cisco Unified Communications Manager (CallManager)

Known Affected Releases


Description (partial)

When a call is placed on hold, an IP phone may continue to transmit
voice packets even though the phone is receiving music on hold.

This problem only occures when the call is routed via a tandem 
Cisco Unified Communications cluster via an IPv4-only SIP trunk
connected at the tandem to an IPv6-only SIP trunk.
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
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  • Known Fixed Releases
  • Related Community Discussions
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