iOS 10 - Verizon WiFi Calling

[mbaran]

Is anyone else using Verizon's WiFi calling with iOS 10.

For me, it works perfectly fine after a reboot, but then after some time (hours, overnight?) it stops working.

Moving into Airplane Mode with WiFi turned on does not trigger WiFi Calling to kick in. A reboot normally resolves the issue.

Has anyone else seen this? I've already submitted a bug report to Apple as well.

 

[jhagg]

I have noticed the same behavior yes.

 

[mbaran]

Oh good! There's nothing worse than being the only one with a problem.

 

[Mlrollin91]

Verizon's WiFi Calling is similar to AT&T and unlike TMO. Verizon and AT&T's WiFi calling only kicks in when you have low service. TMO on the other hand has it activated when you are connected to WiFi 24/7. So if it goes away on your iPhone, its probably because its not 'needed'.

 

[mbaran]

You may have missed where I wrote

Moving into Airplane Mode with WiFi turned on does not trigger WiFi Calling to kick in.

I'm fully aware how WiFi calling works. I also know that in Airplane Mode, with WiFi enabled, iOS should enable WiFi calling.

 

[Mlrollin91]

You may have missed where I wrote



I'm fully aware how WiFi calling works. I also know that in Airplane Mode, with WiFi enabled, iOS should enable WiFi calling.

I didn't miss that. You did not explicitly say that when moving to low service it's not turning on. Airplane mode = no service, not low service. On AT&T, wifi calling doesn't kick in until 2-3 minutes after turning on Airplane mode and WiFi. It's not instantaneous.

 

[mbaran]

If it reboot, it works as anticipated for a period of time. Verizon's WiFi calling kicks in within seconds of Airplane mode and is normally active in ~90% of my home when not in Airplane mode.

Like I said, right now, it's not working. If I reboot, it kicks in. The user above me is having the same issue.

 

[C DM]

I didn't miss that. You did not explicitly say that when moving to low service it's not turning on. Airplane mode = no service, not low service. On AT&T, wifi calling doesn't kick in until 2-3 minutes after turning on Airplane mode and WiFi. It's not instantaneous.

Odd, on Verizon it kicks in pretty quickly.

 

[Mlrollin91]

Odd, on Verizon it kicks in pretty quickly.

Yeah. Not on AT&T. Just timed it twice on my 6s. First time was 1:48. Second was 1:46. So almost 2 minutes both times.

 

[Xenden]

I have wifi-calling on my iPhone with Verizon, and have had no issues.

 

[mbaran]

I was able to actually trace this further than WiFi calling.

Today I noticed that on my Verizon 6S+ (fresh install using xcode 8, restored a 9.3.3b1 backup) not just WiFi calling ceases to work until a reboot, but actually VoLTE.

I noticed today while driving that with full LTE my calls were dropping data and going to 1x. I tried 3-4 numbers, same. Rebooted my phone and voila, VoLTE. When I got home, WiFI calling was also working as expected.

I did a "reset all network settings" already, so I am not sure what causes VoLTE/WiFi calling to become unavailable until a reboot.