No Session Timer Configuration

If the ingress SIP interface supports session timers, and the original INVITE from the UAC included session timer support, the INVITE request sent to the UAS will have no session timer support. However, the Supported: timer header will be created. This ensures that the Oracle® Enterprise Session Border Controller does not get a 421 response for 'timer' from the UAS.

If the ingress SIP interface supports session timers, and the UAC’s initial INVITE did not include session timer support, then the INVITE sent to the UAS will have no session timer support (headers) as well.

If the ingress SIP interface does not support session timers, the INVITE is forwarded with no Session Timer alteration.