Version 7.2 225 Mediant 800B Gateway & E-SBC
User's Manual 14. Media
• Configure the 'RTCP Mux' parameter (IpProfile_SBCRTCPMux) to Supported.
Multiplexing is required as the DTLS handshake is done for the port used for RTP
and thus, RTCP and RTP must be multiplexed onto the same port.
• Configure the ini file parameter, SbcDtlsMtu (or CLI command configure voip >
sbc settings > sbc-dtls-mtu) to define the maximum transmission unit (MTU) size
for the DTLS handshake.
Note:
• The 'Cipher Server' parameter must be configured to "ALL".
• The device does not support forwarding of DTLS transparently between endpoints.
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