________________________________________
From: Attila Sipos [[email protected]]

>>I think that values above 100 are not standard so maybe they require "a=" 
>>line (so you would be right).

The dynamic payload types are between 96 and 127 inclusive.
These dynamic payloads would require an "a=" line.
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The largest payload number with a static assignment is 34.
(http://www.iana.org/assignments/rtp-parameters)
In principle, 35 to 95 are available to be statically assigned in specific 
usages,
but I have never heard of that being done.  Generally, the advice has been to 
always provide
a=rtpmap for all payload numbers, to treat all payload numbers as dynamically 
assigned.

Dale

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