Greetings, spudnik343! That issue with your calls sounds aggravating. You've mentioned that it happens while using the Network Extender. If this doesn't happen when the device is not using the Network Extender, I doubt that this is a problem with your HTC One. Do you use other phones on your Network Extender? If so, do they also experience this problem?
Follow us on Twitter www.twitter.com/vzwsupport
I have been fighting this same issue since August when we first got our HTC phones. You are not alone. We've experienced the same fading, after 5-10 seconds, the signal just fades to the point where it cannot be heard, even in a dead silent room.
There are bunch of people on the web complaining of the same issue.
We've got 2 HTC Ones that do this (they've been replaced multiple times) and anyone with ANY HTC product that visits our house experiences the same problem. HTC and the Samsung wireless extender just don't play nice.
It is a known and well-documented bug. Patches have been promised to fix this issue and since I've gotten my phone, about 4 patches have gone by with no fix (in fact it is far worse today than it has been in the past).
Worse yet, Verizon doesn't stand behind this know problem. They will repeatedly perform exactly the same diagnoses and after doing enough of them, they are more than willing to continuously replace the phone (that won't ever work), but they will not swap it out for a phone of a different brand/model that will work.
Our old Droid 3's worked perfectly on the extender, but since G3 services were being shut off in our area, our phones never worked outside the house; we had to upgrade.
This has been especially painful for us because we both work from home. I've been forced to purchase 2 VOIP lines to deal with this because I live in a metropolitan area with 3.4 million people, my nearest Verizon tower is just over 4 miles away and I the extender was sold to me as a $300 solution that would fix everything.
I've had these 2 phones for almost a year and I've dutifully paid my $154 a month ($1540) for service that usually just fades out. Wasted probably 12+ hours on the phone either on hold or with the Verizon staff. Dumped about another $300 for upgraded modems / routers (which was unnecessary because we are running at > 60MB speeds already). And they still refuse to fix the basic problem that HTC phones don't work with the Samsung Wireless Extender.
The only suggestion I've had for resolution is to spend another $30 per month per phone ($60/mo) and buy a new phone on the Edge plan.
Same issue here on 2 HTC Ones. Spent a lot of time troubleshooting with Verizon only for them to find out it is a known issue. I have found that it does not happen using a bluetooth headset so I use that while on the extender. Its incredible that this can not be fixed. I used the HTC Rezound on the same extender and never had the problem.
Did anyone ever hear resolution on this? I also am having the same issue with my HTC one. Everything is up to date on the phone and the internet has been functioning properly so it doesn't appear to be related to the that. It is not happening with the iphone that is also used at our house on the same network. I would have saved the money if I had known it would cause issues with my phone. At least the extender is functioning properly with the iphone 4s.