• Downloads
• SIP Routing Overview    

• Related Topics
• Using New Transaction Policies to Route SIP Requests

SIP Routing Overview

The BSG uses SIP routing to determine the next-hop and exit point of SIP messages. You define SIP routing in policies. Each incoming SIP request is matched to a policy that specifies how the SIP request is routed.

You can configure the policy to match incoming SIP requests to:

• Contact field in the SIP message
• Request URI field in the SIP message
• Type of SIP method
• Source addresses and masks

You can specify the following actions to be taken on SIP requests that match the policy:

• Next hop—You can specify the next-hop as a request URI or as a static IP address.
• Egress service point—You can specify the IP address of the interface from which SIP requests exit the router and set a port number and transport protocol used to route the request.