SIP H.323 Negotiation H.323 Fast Start

The Oracle® Enterprise Session Border Controller can perform protocol translations for SIP and H.323 Fast Start, where media capabilities are sent with the Setup request for an H.323 session.

This section’s call flow diagrams show how SIP and H.323 messages flow between SIP and H.323 devices, with the Oracle® Enterprise Session Border Controller positioned between the two entities so it can perform translations. The following two sample scenarios with Fast Start appear in the diagrams below, although other scenarios are possible:

• Calls originating in SIP being translated to H.323 Fast Start
• Calls originating in H.323 Fast Start translated to SIP