Name | Used for | Specified by |
---|---|---|
SIP | signaling | RFC 3261 |
HTTP Digest auth. | authentication of SIP clients | RFC 2617 |
SIP over TCP | SIP over connected sockets | RFC 5626 |
SIP rport | SIP symmetric response routing | RFC 3581 |
Session timers | SIP session timers | RFC 4028 |
TLS v1.0 | encrypting transport layer of signaling | RFC 2246 |
SDP | describing properties of the audio stream | RFC 4566 |
SDP offer/answer | offer/answer model with SDP | RFC 3264 |
RTP | packing audio data | RFC 3550 |
SRTP | encrypting audio packets | RFC 3711 |
SDES | cryptographic key exchange over SDP | RFC 4568 |
AMR | audio codec | 3GPP S26 |
AMR over RTP | sending AMR packets over RTP payload | RFC 4867 |
HTTP | licensing and provisioning | RFC 2616 |
HTTPS | HTTP over encrypted TLS channel | RFC 2818 |
AES-256 in SRTP | Use of AES-192 and AES-256 in SRTP | RFC 6188 |
ZRTP | Key agreement protocol | RFC 6189 |
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