Summary

Recommendation ITU-T H.248.77 defines a new ITU-T H.248 package, the secure real-time transport protocol (SRTP) package. In addition, this Recommendation covers a set of procedures related to SRTP key management. The combination of package and procedures allows a media gateway controller (MGC) to control the use of SRTP by a media gateway (MG).

This revision contains an updated package that allows for the usage of datagram transport layer security (DTLS)-SRTP key management scheme that exchanges the peers' certificates via the signalling path and then establishes a DTLS connection on the bearer path.