[Freeswitch-users] Freeswitch using iLBC codec with inphonex

Anthony Minessale anthony.minessale at gmail.com
Fri May 9 09:18:17 EDT 2008


RTP payloads are a 7 bit number 0-128 divided in 2.
0-96 are reserved by the iana
97-128 are considered dynamic.

When matching codecs between 0 and 96:
1) The payload MUST be matched by the _number_.

When matching codecs between 97 and 128: (dynamic range)
1) The payload MUST be matched by the _name_.
2) Even when your leg and the other leg have different numbers for the same
name, you MUST use their number to SEND and your own to RECV you CANNOT send
your number someone who as advertised the same codec on another number.

Please advise me on what we did wrong otherwise please remove me from your
list of things that do it wrong.



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