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Cisco Bug: CSCur10534 - Unity Connection 10.5 TLS/PKI inter-op redundant CUCM

Last Modified

Aug 25, 2020

Products (1)

  • Cisco Unity Connection

Known Affected Releases


Description (partial)

During Failover at CUCM , Secure SIP call fails due to TLS handshake failure at Unity Connection.

CUCM SUB has SIP trunks to both Primary and Secondary Unity Connections servers, SIP with TLS/PKI.  CUCM SUB fails and CUCM PUB attempts to connect using its certificate, connection fails.  Redundancy with TLS/PKI is highly desired for U.S. Dept of Defense environments.    Issue found while solution testing FCS version of 10.5.1 for DoD.
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