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mbaran

macrumors regular
Original poster
Jun 10, 2008
121
10
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.
 
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mbaran

macrumors regular
Original poster
Jun 10, 2008
121
10
Oh good! There's nothing worse than being the only one with a problem.
 
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Mlrollin91

macrumors G5
Nov 20, 2008
13,732
9,325
Ventura County
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'.
 
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mbaran

macrumors regular
Original poster
Jun 10, 2008
121
10
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.
 
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Mlrollin91

macrumors G5
Nov 20, 2008
13,732
9,325
Ventura County
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.
 
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mbaran

macrumors regular
Original poster
Jun 10, 2008
121
10
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.
 
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C DM

macrumors Sandy Bridge
Oct 17, 2011
51,388
19,440
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.
 
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mbaran

macrumors regular
Original poster
Jun 10, 2008
121
10
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.
 
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