This is what I have from them (from mss log):
Code:
m=audio 17984 RTP/AVP 8 0 3 97 7 110 5 10 18 112 111 101
a=rtpmap:8 PCMA/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:3 GSM/8000
a=rtpmap:97 iLBC/8000
a=fmtp:97 mode=30
a=rtpmap:7 LPC/8000
a=rtpmap:110 speex/8000
a=rtpmap:5 DVI4/8000
a=rtpmap:10 L16/8000
a=rtpmap:18 G729/8000
a=fmtp:18 annexb=no
a=rtpmap:112 AAL2-G726-32/8000
a=rtpmap:111 G726-32/8000
G711A (PCMA) is always negotiated for me.
RTP is coming from 217.14.138.16