Well, my issue stemmed from a coupe of things.
I am a Cablevision customer (Optonline) and about the same time I signed up with VOIPo, I swapped out an old cable modem I had for about 10 years, and replaced it with a Scientific Atlanta DPX2203. Turns out the initial one I was given was problematic and kept on recycling my connection. A problem in itself, but an additional "feature" that the modem has a built in DHCP server that is only active when your modem is not getting a proper connection. When that happens, the modem issues the private IP of 192.168.100.10, and the Grandstream registers with VOIPo with that IP. Then when my connection came back, a public IP is issued, but my ATA does not re-register. So, I would see 4 registration lines, and the VOIPo servers would get confused, and my phone calls would fail.
Kind of confusing, but you can follow the link out on DSLReports.com. I had a lot of VOIP heads helping me and I ended up knowing more about VOIP than I cared to!
http://www.dslreports.com/forum/r261...-VOIP-experts-.
At any rate, once I swapped out the DCP2203 for a new one, put the ATA inside my network and assigned it a private IP address, and VOIPo fixed a registration expiration parameter on their end, all was well!!
As far as advice/settings, the most handy feature in my opinion is the call routing. It's really easy to blacklist, or have certain numbers disconnected, or even forward pesky credit card scammers directly to the FCC with a couple mouse clicks!
That and the SIP phone. I can literally use my DroidX from anywhere in the world and make and receive calls from my home number.
Your home phone has become literally location-less.
Dave.
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