Modifications to Registration Caching Behavior

With the SIP connect feature enabled, Oracle® Enterprise Session Border Controller registration caching works the same way that it does with the feature disabled, with the following exceptions:

The Oracle® Enterprise Session Border Controller determines whether the destination realm has the sip-connect-pbx-reg option configured, and then:

• If it is configured, the Oracle® Enterprise Session Border Controller replaces the user part of the Request-URI with the user part of the To header. When the INVITE contains a P-Called-Party-ID header, the Oracle® Enterprise Session Border Controlleruses the user part of the P-Called-Party-ID header (instead of the To header).
• If it is not configured, the Oracle® Enterprise Session Border Controller determines if the destination address is for a session agent and whether that session agent has sip-connect-pbx-reg option configured. When it is configured, the Oracle® Enterprise Session Border Controller performs the same replacements described in the bullet directly above. When it is not configured, the Oracle® Enterprise Session Border Controller does not make any replacements.

When it receives an INVITE request, the Oracle® Enterprise Session Border Controller checks the incoming realm for the sip-connect-pbx-reg option.

• If it is configured, the Oracle® Enterprise Session Border ControllerC uses the INVITE’s source address (instead of the AoR and Contact-URI) to search the registration cache for a matched registration entry.
• If it is not configured, the Oracle® Enterprise Session Border Controller determines if the INVITE’s source address is for a session agent and whether that session agent has sip-connect-pbx-reg option configured.

  When it is configured, the Oracle® Enterprise Session Border Controller replaces the user part of the Request-URI with the user part of the To header. When the INVITE contains a P-Called-Party-ID header, the Oracle® Enterprise Session Border Controlleruses the user part of the P-Called-Party-ID header (instead of the To header).

  When it is not configured, the Oracle® Enterprise Session Border Controller does not make any replacements.