1. Configuration Guide
  2. Security
  3. Secure Real-Time Transport Protocol
  4. Operational Modes
  5. Back-to-Back SRTP Termination

Back-to-Back SRTP Termination

Back-to-back SRTP termination is illustrated in the following figure.

The Back-to-Back SRTP Termination diagram is described below.

Back-to-Back SRTP Termination

Initial processing is similar to the single-ended termination described above. Before forwarding the request to the called party, the Oracle® Enterprise Session Border Controller replaces the original crypto attribute with a new one whose crypto attribute conforms to the media security policy for the outbound realm/interface. Upon receiving the answer from the called party, the Oracle® Enterprise Session Border Controller accepts or rejects it, again based upon conformity to the media security policy. If accepted, the Oracle® Enterprise Session Border Controller replaces the original crypto attribute from the called party with its own to form a new SDP, which it forwards back to the calling party. At this point, SRTP media sessions are established on both sides for both calling and called parties.