motorola vt1005v issues

Posts: 7 · New Forum Member Joined: Nov 02, 2005 Posts: 7

Well, after a good long fight this winter getting reliable VoIP service through my internet connection here, I had thought I had the code cracked on our vonage setup - but apparently I'm wrong.

Initially, I had a Linksys BEFSX41 in the motorola vt1005v I got from Vonage, and that absolutely did not work (even with higher QoS on the router port the phone was connected to). So I put the Motorola in front, and once I got that set, I was absolutely great for about 3 months.

Now just recently, I'm having horrible voice issues again. Choppy, incoherent phone calls, one side can barely hear the other or can't understand it at all because it's so chunky and garbled. However, I think the issue might be with the VT1005v.
I have 8000/768 service from comcast, and they've come out to my place to check my line, they've swapped out cable modems, and have been monitoring the signal strength of the connection, and they continuously claim it's rock solid. What's interesting to note however, is that when I'm connected to the cable modem through ONLY the linksys router (motorola vt1005v completely out of the picture, not connected or powered up), I get my 8000kbps/768kbps from various speed test sites - consistently. BUT, with the motorola in front of the linksys, my connection speeds bounce around from 4500kbps/768kbps, down to 2500kbps/768kbps, and with some really bizzare download dips going below 1000kbps (I've seen as bad as 7kbps). It's completely random, which makes it outrageously frustrating.

So that leads me to believe there's something going on with the phone adapter. Is there anything that can be done as far as firmware on this device, or should we just try and replace it with something else? It's only several months old, I'd be a bit shocked and dissapointed if it was flaking out already, although I've never really held that vt1005v in high regards. I absolutely cannot go back to having the Linksys in front of the Motorola, the phone service is completely unusable.

If I do decide to replace it, what is a worthwhile replacement? I've thought of getting an all-in-one router/adapter/wap, but don't know what's good, and I also havn't seen any all-in-one's that support VPN endpoints (only VPN passthrough).

suggestions, comments, votes of sympathy?