i did have a problem while doing a interconnection to a customer, with multiple ptime in sdp. His equipment did not accepted the sdp freeswitch offered

m=audio 52628 RTP/AVP 0 8 3 9 18 101 13

a=rtpmap:101 telephone-event/8000

a=fmtp:101 0-16

a=ptime:20

m=audio 52628 RTP/AVP 4 101 13

a=rtpmap:101 telephone-event/8000

a=fmtp:101 0-16

a=ptime:30

to avoid this - i have added sdp_m_per_ptime=false before bridge. 

I have done some readings about this - and it is not clear to me if freeswitch accts according to this draft http://tools.ietf.org/html/draft-garcia-mmusic-multiple-ptimes-problem-01

It seems to be a mix between method 2 and method 6 - but i am not sure.

Can anyone clearify which method freeswitch is using here ?

br,

Wolfgang Pichler