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Cisco Bug: CSCui96679 - SBC No Way Audio on Transfer calls traversing more than two SIP trunks

Last Modified

Apr 17, 2019

Products (1)

  • Cisco ASR 1000 Series Aggregation Services Routers

Known Affected Releases


Description (partial)

On a Cisco ASR1k running the Cisco CUBE SP (Service Provider) feature set, IOS-XE version 15.1(3)S1, it is sometimes observed that a specific call transfer will have no way audio (dead air) upon the transfer completion.

The CUBE SP has at least three physical interfaces that terminate three different SIP trunks (for example to ITSP, SIP based IVR and to a Cisco Callmanager) and the problematic transfer call flow signaling traverses all three SIP trunks on the same CUBE.
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Bug Details Include

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