[cisco-voip] Early media

[Karl Smith]

Hi,
 
I am using a 2610 as a sip to isdn gateway. It appears that there is an issue with early media. When the gateway receives rtp in early media on the ip side it does not switch it through on the isdn bearer channel. Hence if any announcements or tones are provided on a media server just after the 183 session progress and before the 200 OK, these cannot be heard on the ISDN side.
 
This problem does not exist in the reverse direction; i.e. if an announcement is available on the isdn side before the connect message, the gateway will swith it on an rtp stream and sends it to the ua.
 
The IOS image that I am using is the c2600-is3x-mz.123-6b.bin
 
Does any one knows whether this problem was resolved in more recent releases? If yes, any ideas which release?
 
Thanks and regards,
 
Carmelo
 


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