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Cisco Bug: CSCvv16627 - Jabber disconnects transferred call due Avaya send UPDATE and renegotiation

Last Modified

Oct 16, 2020

Products (1)

  • Cisco Unified Communications Manager (CallManager)

Known Affected Releases


Description (partial)

Avaya sending UPDATE notification and then followed by renegotiation. Here UPDATE triggers Recording restart and while this is in progress, renegotiation for transferred call happens. This causes two transactions being processed simultaneously, one recording restart and another codec renegotiation. Hence the call was dropped by the endpoint as the negotiated codec is different from the codec negotiated with Recording leg.

Jabber has call recording enabled
codec on the recording leg changed due to transfer and renegotiation
Avaya is using only g.729 and CUCM using only g.711
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