John,

thanks for all of your assistance. This is my 3rd cable modem in my 2nd location, which again makes it highly unlikely, to me, that it would be both or either (but I could be wrong)!

I am truly puzzled with this one!

The whole "take it to a Hotspot" process, just is not scientific enough for me, besides I bought the "@Home" service for that purpose. I received all of my UMA capable equipment from TMO, and I would like some scientific troubleshooting to pinpoint my problem in "my home".

I'm not shooting the messenger, just ranting a little as it has been 10 months now of unresolved dropped calls and poor call quality. I spent 3 hours on the phone w/TMO CC b4 they were convinced to open a trouble ticket, and only then when I got my account mgr conferenced in!

It really does sound like the dd-wrt thing might help, but again it doesn't look like my "new" router is compatible.