The problem is that (in and out )calls ara disconnected after a while or we hear some noise and after that it's immediatly chopped off..I don't know if it's a provider problem or not, cuz the local calls are working just fine.
Ok, I'm using CUCM System version: 10.5If it's an incoming call, it's immediatly interrupted and in case of outcoming call, it gives a busy line. And sometimes, it gives a noisy line and it cutsThank u in advance