[asterisk-dev] queries regarding SDP implementation for multiple bit rates for g.722 codec.

[lalit kumar]

Hi  All,



Help needed regarding G.722 codec negotiation.

I have few queries regarding SDP implementation for multiple bit rates for
g.722 codec.



As we know that g.722 supports 48,56 and 64 kbps.



Query-1: à I want to negotiate g.722 codec with multiple bitrates 64 56,and
48. Then what would be SDP attributes value in Sip invite.



Query-2à if I have following codec order for negotiation, then what would be
the SDP for Sip Invite?



               G.722 at 64 kbps

               PCMU

               G.722 at 56 kbps

               G.729

               G.722 at 48 Kbps



Query-3 à On network what flavor of G.722 codec is better from 64, 56 and 48
kbps?





Please help me out, Thanks in advance.









-- 
Thanks & Regards

Lalit Kumar
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