availability-enabled

true

(optional) If set to true, and if availability is enabled for the server instance (see availability-service), high-availability features apply to all SIP extension modules deployed to the server instance that do not have availability disabled. All instances in a cluster should have the same availability value to ensure consistent behavior.

persistence-type

memory (availability disabled)

replicated (availability enabled)

(optional) Specifies the session persistence mechanism for SIP extension modules that have availability enabled. Allowed values are memory (no persistence) and replicated (other servers).

persistence-frequency

sip-transaction

(optional) Specifies how often the session state is stored. The default, sip-transaction, is the only allowed value. The session state is stored at the end of each request prior to sending a response back to the client. This provides the best guarantee that the session state is fully updated in case of failure.

persistence-scope

session

(optional) Specifies how much of the session state is stored. The default, session, is the only allowed value. The entire session state is stored every time.

repair-during-failure

false

(optional) Deprecated. If true, specifies that a forward and reverse repair should be performed on an instance that has joined or rejoined the cluster.