I have Comcast telling me my connection is good for the past 11 days w/avg ping of 66ms. AT my request they are going to switch out my modem tomorrow, from the Arris to the Internet-only model.

The handoff from UMA to EDGE has never been smooth, and generally I hang up first. EDGE to UMA is not as bad, but again not 100%.

I'm gonna find a nearby hotspot and give it a try, but at this point that only leaves the TMO router.

I want you to be fully aware of my experience, so I will give it to you in detail:

9/07 - purchased the service and the 8320 handset
9/07 - began experiencing poor call quality and dropped calls; was using a Netgear SuperG Wireless Router that could not be upgraded so I purchased a newer model thinking that the firmware would not support the UMA protocol priority over data; no change
9/07 - purchased the TMO Router WRT54G-TM, no change.
10/07 - had Comcast Digital Voice Service cancelled and Comcast switched out the modem.
10/07 - had Comcast run a seperate line into my home for the Internet; no change
11/07 - switched handset(new 8230); no change
12/07 - changed SIM card per TMO; no change
3/08 - changed handset (new 8320); no change
4/08 - physically relocated(moved); no change still dropping calls and poor call quality sporadically.
4/08 - Arris modem is installed at the new location. relocated the router to optimize the signal; no change.
6/08 - new handset(my 4th); no change
7/08 - upgraded to the newer @Home service; installed new router(my 4th), bought 5.8GHz phone had bad call quality; replaced the phone with DECT6.0 phone; both the 8320 and the VOIP DECT6.0 handsets now have poor call quality and drop calls.
7/08- Comcast says there is no problem - pinging at 66ms and speed is

7/21/08 - Finally TMO has assigned a trouble ticket