Whats the right implementation for ptime/maxptime in the SDP. I read few
recommendations but what is the correct way of doing it?
 
m=audio 22836 RTP/AVP 4 18          
c=IN IP4 216.168.161.230          
a=rtpmap:18 G729/8000          
a=fmtp:18 annexb=yes;ptime=20
a=maxptime:40          
a=rtpmap:4 G723/8000          
a=fmtp:4 bitrate=6.3;annexa=yes;ptime=30
a=maxpime:60
 
OR
 
m=audio 22836 RTP/AVP 4 18          
c=IN IP4 216.168.161.230          
a=rtpmap:18 G729/8000          
a=fmtp:18 annexb=yes;
a=ptime:20
a=maxptime:40          
a=rtpmap:4 G723/8000          
a=fmtp:4 bitrate=6.3;annexa=yes
a=ptime:30
a=maxpime:60
 
is this how we can define ptime and maxptime per media attribute? Any place
this has been defined?    
 
Thanks
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