asterisk users - Nov 2007 - Audiocodes over Sat link. and delay

Hi,
I am using OpenSer + Asterisk. I am using a Audiocode MP112 over a
satellite link. The ping time to the server is about 700ms. When
connecting to another carrier there is no delay what so ever. When I
connect it to my test server there is a 3 second delay. From what I
heard my test carrier is using Audiocodes. Can anyone tell me if they
experienced this before and what could be the issue ?

Thanks.

/J