I'm trying to diagnose or pinpoint the potential source of this problem: On a Ver 10 system running on an Intel Atom platform and XP, I get periodically "dropped" from the VoIP registration. No incoming nor outgoing calls. This system has been running for a long time with 100% up-time, until recently. I've installed Ver 12 on an WIndows 7 Pro platform, however here I lose registration even more frequently. Rebooting either server usually reconnects the registration with my VoIP provider, but not for long. I am "testing" with using DSL with 60kb up and 4mb down. So, where can the problem be? My DSL connection? My VoIP provider? Or both computers are not behaving?