We recently upgraded to 4.0 from 3.7. Ever since then our IP phones haven't had a good connection. The phones will reboot by them selves or get horible sound quality. We also moved one of our customer and upgraded them to 4.0 and they are having the same issue. Before the move they said the phones worked perfectly. We have a VPN tunnel setup with Contivity 221 boxes on both locations.
any ideas
any ideas