Thanks for your reply.
1. So it means there is nothing wrong with the Quintum right? It just a matter of that IP was set manually. Thanks for the clarification.
2. Yes, i did use the E1 cross-over cable. The cable is okay, bcoz its the same cable used for back-to-back on E1 port with other gateway. The Quintum cannot see the trunk. I think maybe i have to go through the ‘pstntg’ configuration once again.