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Secure real-time transport protocol (Secure RTP or SRTP) is an IETF cryptographic protocol used to provide secure communications over an untrusted network. SRTP provides confidentiality, message authentication and replay protection to Internet media traffic such as audio and video. The 

Spacevars
0 series4

supports Secure RTP and its associated secure real-time transport control protocol (Secure RTCP) for IPv4/IPv6 addressing for both audio and video streams.

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The 

Spacevars
0 product

supports the crypto-suite "aes-cm-128-hmac-sha1-80" and "aes-cm-128-hmac-sha1-32" for Secure RTP. Secure RTP is requested by the presence of RTP/SAVP or RTP/SAVPF in the m= line.

Note
The Spacevars 0 series3 does not support the "aes-cm-128-hmac-sha1-32" algorithm is not supported in Spacevars 0 series3 .

The appropriate crypto suite profile may also include valid combinations of the following session parameters:

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