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Codec 1~5: The preference codec priority
G.711u Payload Size: G.711 u-Law payload size
G.711a Payload Size: G.711 A-law payload size
G.729 Payload Size: G.729A payload size
G.723.1 Payload Size: G.723.1 payload size
Bit Rate: G.723.1 bit rate used
Codec Priority: Selection order to match the remote SDP for codec
selection.
DTMF Relay:
In-Band DTMF: use inband DTMF instead of out of band.
RFC 2833(fall back to SIP-INFO): Use RFC 2833 if the SDP
negotiation could be done. Or use SIP INFO for DTMF relay.
SIP INFO: Use SIP-INFO DTMF relay
RFC 2833(fall back to Inband): Use RFC 2833 if the SDP
negotiation could be done. Or use inband DTMF transmission.
5.3K bit rate is used
6.3K bit rate is used
Local SDP Order: Use local SDP order to match codec
Remote SDP Order: Use Remote SDP order to match codec
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