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iOS 14 VoLTE to VoWiFi call handover issues

G

gingerlinguk

macrumors newbie
Original poster
Nov 9, 2020
12
6
I have an open case currently with Apple. But I feel as though they are trying to fob me off. It appears that handovers no longer work. Has anyone else noticed this? Previously with iOS13 it was possible to start a VoLTE call and then handover to WiFi. With iOS14 this doesn't happen. The call sticks on VoLTE and if the VoLTE signal is lost the call will drop rather than handing over to VoWiFi (WiFi calling).

Anyone else experienced this?

On iOS13 it was possible to force the handover by starting the call on VoLTE, while the call active enable WiFi and then disable cellular. The call would handover and the handset would display WiFi Calling in the top left.
 
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Also to confirm I know it’s not a device related issue. As I’ve tested multiple iPhones running iOS14, 2 11 pro max, xs max and a 11 pro. Same issue with them all. All devices running 13 handover the call without an issue.
 
Having the same issue on Verizon. Got disconnected several times at home and no where else. Realized the call is getting disconnected when it attempts to switch from WiFi calling to cellular and vice versa. The handoff isn’t working. I’m on an iPhone 12 pro with Verizon. Tested both of my lines with my voip line for work.
 
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rikishah said:
Having the same issue on Verizon. Got disconnected several times at home and no where else. Realized the call is getting disconnected when it attempts to switch from WiFi calling to cellular and vice versa. The handoff isn’t working. I’m on an iPhone 12 pro with Verizon. Tested both of my lines with my voip line for work.
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Thanks for the reply. Could you message me so I can ask you for some more details.
 
I’ve never known this to work, despite the LMS being key to both services I just assumed that it was something we had to put up with?
 
+1 very useful thread

I also remember a year or so ago that a cellular call would jump onto Wi-Fi as well and I have not seen that either.
 
I am a network tester and this is a service that Apple should be supporting. It’s baffling to me why they would remove such a feature from iOS14.
 
bydandie said:
Sorry, meant the IMS (typo) - crucial for VoLTE and VoWiFi to work
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Ah yes, I certainly know what IMS is. I just don't understand why Apple would remove a feature, I do think this is a defect within iOS14. I have attached a file that proves it works on iOS13

 
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Have you reported it through the carriers? If the issue is what appears to be true, then they would have more luck with Apple IMHO?
 
While informative and interesting, I suppose you should have spoken to your team and get this resolved between companies - network company (the carrier) and phone company (Apple) than coming here. It’s possible the company could send messages to its iPhone users to find out the scale of the problem so they can bring it to Apple better and with full information, if they want to.

It is possible Apple would say this is an issue and they are working on it, sadly distracted by trying to make more money with launching hardware instead of working to first fix things that are broken with annual new software routine.
 
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macintoshmac said:
While informative and interesting, I suppose you should have spoken to your team and get this resolved between companies - network company (the carrier) and phone company (Apple) than coming here. It’s possible the company could send messages to its iPhone users to find out the scale of the problem so they can bring it to Apple better and with full information, if they want to.

It is possible Apple would say this is an issue and they are working on it, sadly distracted by trying to make more money with launching hardware instead of working to first fix things that are broken with annual new software routine.
Click to expand...
I am not testing the device I am testing some network upgrades that are working as they should be. My project team won't be interested in a handset software defect. I will, however, look internally to see if I can find some way of reporting this to Apple.
 
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gingerlinguk said:
I am not testing the device I am testing some network upgrades that are working as they should be. My project team won't be interested in a handset software defect. I will, however, look internally to see if I can find some way of reporting this to Apple.
Click to expand...

If the team won't be interested in a handset software defect, what are we discussing here? I thought we were discussing handset software defect right from your first post, since certainly this is not a handset hardware defect, as you said things were fine with iOS 13. What are we hoping to achieve here?
 
I am justifying why I have not raised this internally, explaining that I’m testing the IMS network upgrades within my project not handset software. As part of my network testing I found this issue with iOS 14. What I am hoping to achieve is for Apple to admit there is an issue with iOS 14 and resolve the handovers issue. I don’t want to have to use Android devices going forward when I have network regression testing.
Sorry if I’ve been unclear.
 
So they have finally admitted that VoLTE to VoWiFi handovers are not a feature of iOS14 o_O:-

Hello Adam,

Our engineering has submitted a request for the feature to be implemented. If you want to express your desires for that, you can also make the request at the link below.

http://www.apple.com/feedback

Best regards,

I am unsure why they wouldn't want such a feature within iOS.
 
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