HA Configurations

Support for wildcarded PUIs requires checkpointing two new data points that need to be replicated in HA configurations.

  • the P-Profile-Key in the sip session so that subsequent requests in a session can take the cached value and include that value in egress requests to core
  • Upon SUB-NOT-200OK, the active P-CSCF replicates the subscribe session to the standby. This information is required to replicate the new PAU list of the associated SIP User if the </wildcardedIdentity> element arrives in the NOTIFY XML and has wildcarded entities.