I am a new user on Plus net, and my wife is working from home at the moment. Her company have given her a phone tool with Unity Desktop, which I guess is some kind of VOIP system. However, since moving to Plus net the system seems to "hang up" the call after around 10 minutes. Sometimes, she will be on hold for in excess of 30 minutes before the provider responds, so this is very frustrating. Do you know if there is a time out limit on calls, and if so, how can I increase this limit. Thanks.