Multi-system Selective SRTP Pass-through

Prior to Release S-CX6.3F1, Oracle® Enterprise Session Border Controller provided a single Secure Real-time Transport Protocol (SRTP) operational mode, referred to as SRTP Media Proxy Mode. In this original processing mode, each Oracle® Enterprise Session Border Controller in the SRTP media path served as a proxy for the media — always decrypting inbound traffic, and encrypting outbound traffic.

Release S-CX6.3F1 introduces support for a new, alternative processing mode, referred to as Multi-system Selective SRTP Pass-through Mode. In this new mode encryption and decryption of SRTP media is handled by the SRTP endpoints, the calling and called parties. Off-load of the processor-intensive encryption/decryption provides the Oracle® Enterprise Session Border Controller with the ability to handle a larger number of simultaneous SRTP sessions.

With Multi-system Selective SRTP Pass-through enabled, the Oracle® Enterprise Session Border Controller can configured to selectively allow hair-pinned (spiral) SRTP packets to pass through the Oracle® Enterprise Session Border Controller without encryption or decryption.

Note:

hair-pinned calls are those calls where the calling and called parties are within the same realm and/or within the same sub-network.