Robust Receipt Of Media Streams By Media Latching - AudioCodes Mediant 1000B User Manual

User's Manual

12.12 Robust Receipt of Media Streams by Media Latching

The Robust Media mechanism (or media latching) is an AudioCodes proprietary
mechanism to filter out unwanted media (RTP, RTCP, SRTP, SRTCP, and T.38) streams
that are sent to the same port number of the device. Media ports may receive additional
multiple unwanted media streams (from multiple sources of traffic) as result of traces of
previous calls, call control errors, or deliberate malicious attacks (e.g., Denial of Service).
When the device receives more than one media stream on the same port, the Robust
Media mechanism detects the valid media stream and ignores the rest. Thus, this can
prevent an established call been stolen by a malicious attacker on the media stream.
For a detailed description of the robust media parameters, see ''General Security
Parameters'' on page 748.
Version 6.8 141 Mediant 1000B Gateway & SBC
12. Network