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gsmornot

macrumors 68040
Original poster
Sep 29, 2014
3,672
3,853
It seems like since 9.3 there is latency with phone calls. I did a test and it's about 4 seconds. I'm wondering if turning Numbersync off and just using WiFi calling will fix this as Numbersync is 9.3 only, right?
NumberSync started with 9.2 but has evolved over time to include more devices and more options. The most recent change being able to use an LTE iPad to make/receive calls though the LTE service. Prior we were only allowed to use WiFi.
 

iphnhelp

macrumors 6502
Jun 16, 2010
258
42
I turned off Numbersync, had it removed from my account. And went back to just WiFi calling on my iPhone. The latency issues seem at this point to be gone. But we'll see how it works over time. My issues were long latency and breaking up over WiFi calling and I didn't have that issue before 9.3 and that's about the time I enabled Numbersync. We'll see if this is a fix.
 

Morac

macrumors 68020
Dec 30, 2009
2,307
681
Just as a FYI, wifi calling on the iPhone connects to different servers then it does on other devices. iPad uses SIP-TLS and connects to a specific up address, while I haven't been able to determine exactly what the iPhone does.

The reason being the iPhone connects to Wifi only when it needs to and unlike the iPad, the address doesn't show up when looking at connections on the device itself. You need to look at the router to see where the phone is connecting to.
 

iphnhelp

macrumors 6502
Jun 16, 2010
258
42
Interesting. Yeah, this might not be a fix for my WiFi calling issues with the iPhone. So far it seems to be working better but time is going to tell if this is an actual fix, or coincidental.
 

Shikaka

macrumors regular
Sep 12, 2014
238
89
AT&T finally made wifi calling available in my area a few months ago. I enabled it on my 6S Plus and iPad Air 2. There were a few times when I would answer a call on my iPhone and the iPad would continue ringing during my conversation. It was really annoying so I disabled wifi calling all together.
 

magicMac

macrumors 65816
Apr 13, 2010
1,013
428
UK
wish either vodafone or EE in the UK would enable this additional functionality of WiFi calling, not sure what is required that prevents it from being enabled but seems most the carriers in the US are now supporting it?
 

GreyOS

macrumors 68040
Apr 12, 2012
3,358
1,694
wish either vodafone or EE in the UK would enable this additional functionality of WiFi calling, not sure what is required that prevents it from being enabled but seems most the carriers in the US are now supporting it?
isn't it just AT&T?
 

magicMac

macrumors 65816
Apr 13, 2010
1,013
428
UK
i can only find articles about t-mobile announcing a numbersync-like feature but not actually launching it

They all brand it differently but Apple call it "Wi-Fi Calling on supported iCloud-connected devices" on the following webpage: https://support.apple.com/en-us/HT204039.

It looks like AT&T, T-Mobile USA and Sprint (not Verizon, my mistake) all support it. No networks outside the USA support it, not sure why that is. The reason i'd like this feature is for situations where my iPhone battery has gone flat, my Apple Watch will still be able to make/receive standard phone calls using the same number, including with non-apple devices, assuming Wi-Fi is available.
 
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GreyOS

macrumors 68040
Apr 12, 2012
3,358
1,694
They all brand it differently but Apple call it "Wi-Fi Calling on supported iCloud-connected devices" on the following webpage: https://support.apple.com/en-us/HT204039.

It looks like AT&T, T-Mobile USA and Sprint (not Verizon, my mistake) all support it. No networks outside the USA support it, not sure why that is. The reason i'd like this feature is for situations where my iPhone battery has gone flat, my Apple Watch will still be able to make/receive standard phone calls using the same number, including with non-apple devices, assuming Wi-Fi is available.
Ah, thanks. So it seems like AT&T NumberSync may be the only cross-platform, network-level implementation, the others are more like Apple features. Does that sound about right?

I was skeptical the UK would get it soon if it required network-level changes, but if they can do it as an Apple-level feature, there's no excuse!
 

magicMac

macrumors 65816
Apr 13, 2010
1,013
428
UK
Ah, thanks. So it seems like AT&T NumberSync may be the only cross-platform, network-level implementation, the others are more like Apple features. Does that sound about right?

I was skeptical the UK would get it soon if it required network-level changes, but if they can do it as an Apple-level feature, there's no excuse!

I think the T-Mobile, sprint and AT&T implementation are all identical, just branded differently by the carriers.

I think it's just a network-level policy where the carrier permits other devices other than the phone itself to make a connection to it's network. I think the iPhone shares the SIM card details with the watch, iPad etc... over iCloud but the network has to support the connection from these other devices.
 

GreyOS

macrumors 68040
Apr 12, 2012
3,358
1,694
I think the T-Mobile, Spring and AT&T implementation are all identical, just branded differently by the carriers.

I think it's just a network-level policy where the carrier permits other devices other than the phone itself to make a connection to it's network. I think the iPhone shares the SIM card details with the watch, iPad etc... over iCloud but the network has to support the connection.
ok it's just a i read t-mobile version only works on apple devices. i'll have to look more into this. thanks for your help
 

Morac

macrumors 68020
Dec 30, 2009
2,307
681
Don't know why, but I just got a pop up that Wifi calling could not be activated on my iPad. It's been activated for months. I went back in and turned it back on and all was good. I've never seen that before. I'm using AT&T.
 

jpsmith76

macrumors regular
Jun 4, 2014
123
205
Huntsville, AL USA
Last week I was done some experimenting on my MacBook Pro. Ok, I have an Early-2011 with the Airport Card from a 2012 to enable Handoff (using Continuity Activation Tool) and that works beautifully.

I was still convinced that there should be a way to get NumberSync to work through the FaceTime app. So I set off exploring and tinkering.

So I used Chameleon Loader (that Hackintosh users use to get OS X to run on a PC) and set the Board ID and Serial number to that of a Mid-2012 and presto! I got the option to upgrade my Wi-Fi Calling and NumberSync was working!

This had unintended side effects, such as the FaceTime Camera not being detected (Since I guess the driver was looking for different hardware for 2012 than 2011) and About this Mac showing 2012, as well as iCloud showing that I was logged in from a 2012.

To make a long story short (too late) We need a hacker/coder to find where FaceTime detects what model Mac you have and edit a kext or two just like Continuity Activation Tool does to enable Handoff.
 

ohio.emt

macrumors 6502a
Jul 18, 2008
815
181
Ohio
ok it's just a i read t-mobile version only works on apple devices. i'll have to look more into this. thanks for your help
I think T-mobile is just apple devices, since it's all done using iCloud. At&t is the only cross manufacture that I've seen.
 
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boston04and07

macrumors 68000
May 13, 2008
1,834
935
Is anyone else running 9.3.2 and having issues? I'm in build 13F65 and since I updated yesterday, my Wifi calling is all messed up. The switch is "on" under the Wifi Calling preference, but it also says in fine print beneath it "Waiting for Wifi Calling activation..." Switching Wifi Calling on and off doesn't help, and neither does restarting the phone. I also can't add Wifi Calling to other devices (nothing happens when I tap that button) and wifi calling has turned itself off on my iPad mini 4 and MacBook Pro, even though it'd been working fine there up until yesterday. I'm running the most recent public betas on those devices as well. Any thoughts would be appreciated!!

Edit: Just uploaded screenshots...
IMG_1169.jpg IMG_1170.jpg
 
Last edited:

Chambersaj

macrumors member
Nov 4, 2015
38
10
Is anyone else running 9.3.2 and having issues? I'm in build 13F65 and since I updated yesterday, my Wifi calling is all messed up. The switch is "on" under the Wifi Calling preference, but it also says in fine print beneath it "Waiting for Wifi Calling activation..." Switching Wifi Calling on and off doesn't help, and neither does restarting the phone. I also can't add Wifi Calling to other devices (nothing happens when I tap that button) and wifi calling has turned itself off on my iPad mini 4 and MacBook Pro, even though it'd been working fine there up until yesterday. I'm running the most recent public betas on those devices as well. Any thoughts would be appreciated!!

Edit: Just uploaded screenshots...
View attachment 629798 View attachment 629799

I have it working on an iPad Pro and iPhone 6S both on 9.3.2. You may want to try having AT&T remove the feature and re-adding it. What I have noticed is that periodically the
 
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gwhizkids

macrumors G5
Jun 21, 2013
13,307
21,484
I had some of these issues with my various devices and had to call AT&T. After that call, all seem to be working now except my Watch. Wifi calling is enabled in the Watch app's phone settings, but when I try to make a call while my phone is in airplane mode, I get "call failed".
 

Chambersaj

macrumors member
Nov 4, 2015
38
10
I'm currently having an issue where nothing that doesn't already have the AT&T 24.1 carrier settings will get them. I have several iPads and iPhones that just will not update to those carrier settings. One iPad that had the carrier settings update I erased to see if it would pull it down again and it did not. Does anyone know where I could get the file to manually update? Or steps I could take to get the idevices to see that there is an update and get it?

Just some additional details, one iPad is the new iPad Pro 9.7 with the embedded SIM. Both the standard non carrier specific settings and T-Mobile settings updated to 24.1 when I used a non-apple carrier sim and T-Mobile sim. So the process itself seems to work, it just can't get the updated AT&T file. When I was on the about screen of the device with those two SIMs it prompted me to update and updated.
 

gsmornot

macrumors 68040
Original poster
Sep 29, 2014
3,672
3,853
I had some of these issues with my various devices and had to call AT&T. After that call, all seem to be working now except my Watch. Wifi calling is enabled in the Watch app's phone settings, but when I try to make a call while my phone is in airplane mode, I get "call failed".
Same here. I have not used the feature from my watch in a while but now that you mention it and I test mine I get the same result. I am running the latest beta at the moment. Side note, my MacBook and Mac mini are both too old for this feature. They can use the phone to make calls but cannot use NumberSync. My iPad works fine.
 

Morac

macrumors 68020
Dec 30, 2009
2,307
681
I'm currently having an issue where nothing that doesn't already have the AT&T 24.1 carrier settings will get them. I have several iPads and iPhones that just will not update to those carrier settings. One iPad that had the carrier settings update I erased to see if it would pull it down again and it did not. Does anyone know where I could get the file to manually update? Or steps I could take to get the idevices to see that there is an update and get it?

Just some additional details, one iPad is the new iPad Pro 9.7 with the embedded SIM. Both the standard non carrier specific settings and T-Mobile settings updated to 24.1 when I used a non-apple carrier sim and T-Mobile sim. So the process itself seems to work, it just can't get the updated AT&T file. When I was on the about screen of the device with those two SIMs it prompted me to update and updated.

The 24.1 carrier settings were included in iOS 9.3 so updating to 9.3.1 should update them.

From my experience with my iPad Air 2 with an Apple Sim, it won't pull down carrier updates OTA. It only updates when there is an iOS update.
 

imlynxy

macrumors 65816
Mar 8, 2012
1,430
626
ios 9.3.1, too lazy for betas now. Overnight vowifi on switched to off by itself. It looks like att updated something on their end.
 

Chambersaj

macrumors member
Nov 4, 2015
38
10
The 24.1 carrier settings were included in iOS 9.3 so updating to 9.3.1 should update them.

From my experience with my iPad Air 2 with an Apple Sim, it won't pull down carrier updates OTA. It only updates when there is an iOS update.

The iPad Air 2 has an AT&T SIM and iOS 9.3.1. It doesn't have AT&T carrier settings 24.1, though. I am going to give up on it.
 
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