I got a problem. remote sites can video call me on ISDN but when i try and call them my link speed drops from 384k to 64k, and phone just rings, no answer. they dont even see my calls coming through to them. when they call me i get connected at 320k even though we bot have 384 (3x64k ISDN lines) Calling any where using IP on the same system is fine.
Usually answered in minutes!