This feature provides support for synchronizing Secure Real-Time Transmission Protocol (SRTP) state between the  and a mediation server such as MS Lync Mediation Server.

When this feature is enabled, the generates new SRTP keys while retrieving a held call.

The syntax to enable this feature is shown below.

% set profiles media packetServiceProfile <profile name> secureRtpRtcp flags updateCryptoKeysOnModify enable