>>> "WORLEY, Dale R (Dale)" <dwor...@avaya.com> 07/30/10 5:07 AM >>> >>> >>> >>>An 'a=rtpmap:0' is not required because payload type number 0 has a static >>>definition. (See http://www.iana.org>>/assignments/rtp-parameters and RFC >>>3551 section 6 for information about the static definitions.) You might >>>want to check the >>>phone's log to see if it says something about why the >>>phone finds this unacceptable.
After getting traces of tollfree numbers working with the exact same SDP I figured it must not be required. Debugs from the phone did not clue me in. You see the SDP come in and then there is a "cstkcall error 6" and it send out the cancel. I haven't found a polycom reference anywhere to see if that error code gives any clues. -M
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