Wi-Fi Calling keeps dropping calls after a few minutes

[gordonf238]

The issue began occurring 2 months ago.  At the time, my wife and I were using iPhone 11 and 12 Pro.  Verizon cell phone coverage in our neighborhood is very poor, so Wi-Fi Calling has always been the way we make calls from home.  We have had Verizon Wireless for a number of years, and Wi-Fi Calling has never been an issue.  

As our ISP, we use Verizon Fios with 1Gbps speed.  I routinely conduct timeout, ping, and broadband speed checks, and our internet connection is solid.  Though as a precaution, I have rebooted our router a number of times.

3 weeks ago, we've upgraded to iPhone 13 Pro, and I was hoping the issue would be fixed.  However, it has not.  The problem appears to be with Verizon's Wi-Fi calling protocols.  After a few minutes on the call, the other party no longer hears me.  I hear them just fine, but they cannot hear me.  I can hang-up, and call them back, and the issue returns after a few minutes.

I have spoken with Verizon Wireless tech support, and they have opened a ticket.  It's been a few days, and I have not heard back yet. 

These are the steps we've already taken:

- Reset network settings on both iPhones

- Downloaded latest iOS (15.1)

- Rebooted our phones

- Rebooted our home modem

The Wi-Fi signal strength is strong (the router is in our home office, from where we conduct most of our calls).

I really wish someone in Verizon's tech support would escalate this issue.  I am happy to be on the phone with them to try and replicate it, and hopefully they can run a diagnostic test that will reveal where the issue is occurring. 

There seems to be a wide range of topics similar to this on Verizon forums, but none seem to offer any solution.  

Thanks for reading, and if anyone has any tips or comments, I'm all ears! 🙂

[JohnGaltatGulch]

I got a private message from them last week and found out they can't help me here because I'm on Verizon pre-paid.

This problem needs to be fixed but unless someone posts a solution here I doubt it will get solved.

I think you are onto something with your new tower / improved signal theory. 

I switched from AT&T to Verizon a few months ago because while wifi calling worked flawlessly when wifi connected on AT&T,  I had a problem with my phone losing all service when leaving wifi coverage and having to turn airplane mode on and off to reconnect every time I left wifi coverage. That went on for almost 2 years with hours and hours of 2nd level support, replacement sim, replacement phone. They couldn't fix it.

This happened after Verizon put up a new tower near me bringing my Verizon signal from terrible to so-so. (-125db to -100ish db) while AT&T stayed at terrible (-120db ish unboosted to -110 ish boosted.)

I've noticed on many Verizon wifi calls, the phone switches back and forth between wifi call and Verizon,  even though I have wifi preferred selected.

It does seem the handoff back and forth between LTE and wifi during a call might be where calls fail. 

Let me know if you get a solution because they can't help me here.

Thanks!

[vzw_customer_support]

We are still here to provide support. If you prefer, we do have other support channels that you can reach out to for assistance. You can review all of our support options here:  https://www.verizonwireless.com/support/  ~Peter