SIP Realm Bridging

This section explains how to configure the internal routing among realms known as realm bridging. Realm bridging lets you cross-connect SIP interfaces. You can use one of the following two methods for bridging realms:

• local policy bridging: use this method to enable dynamic internal routing between realms if your SIP interfaces do not have the SIP NAT function applied.
• SIP NAT bridging: use this method if your SIP interfaces have the SIP NAT function applied.