Summary

Datagram transport layer security (DTLS) is a session layer protocol for securing IP transport protocols. DTLS bearer plane traffic could be terminated or forwarded by ITU‑T H.248 media gateways. DTLS is derived from the transport layer security (TLS) protocol. Recommendation ITU‑T H.248.93 provides information for (DTLS) support by ITU-T H.248 entities with focus on the reuse of "ITU-T H.248 TLS packages" (according to Recommendation ITU-T H.248.90) for DTLS. This Recommendation defines an ITU-T H.248 package extension to the TLS capability negotiation package for the support of DTLS-SRTP sessions.