iPhone wifi calling problem 2024

Question

Level 1

38 points

iPhone wifi calling problem 2024

Cell service in my home is poor to none so I rely on wifi calling. Until last year I had no problem making or receiving calls via wifi calling. Now, 60% of incoming calls go directly to voicemail but never show up as a "received" call. If the caller does not leave a message, I never know that they called.

I have a Unifi wifi system with 8 access points (large house with problematic walls). I had a problem with a 14pro max, and now with a 16 pro max. My wife has a 15 pro. Other folks with Apple phones have the same problem when visiting.

My internet gets a gigabit speed when hard wired and up to 300-500 megabits on wifi. Unifi says that the wifi is definitely not a problem. AT&T says it ain't them. Apple points at AT&T. AT&T has reset the internal SIM on my phone with no effect. It seems unlikely that I am the only user having this problem yet I find no requests for help dated 2024.

This is incredibly frustrating and I would welcome any assistance. Thank you.

iPhone 16 Pro Max

Posted on Dec 5, 2024 9:15 AM

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Answer 1

Top-ranking reply

lobsterghost1

Community+ 2026

Level 10

210,274 points

Dec 5, 2024 10:01 AM in response to Rupp2758

Do you use a VPN on your iPhone or any of the other phones having issues? If yes, don't just turn it off, delete the VPN profile completely. VPN is not needed on iPhone and is the cause of most Wifi issues with iPhones.

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Answer 2

Dec 5, 2024 1:50 PM in response to Rupp2758

Rupp2758 wrote:

Thank you but I do not use VPN

I would call AT&T and elevate your issue to a higher technical support level. Whatever issue you have is some incompatibility issue with your router, especially since it is happening on multiple devices.

I have a whole house Linksys Mesh 6e network and have absolutely no Wifi connectivity or Wifi calling issues on our iPhone 16 Pro or 16 Pro Max at all. AT&T is my cellular provider, but NOT my Internet Service Provider.

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Answer 3

KiltedTim

Level 10

234,402 points

Dec 5, 2024 9:38 AM in response to Rupp2758

Seems like your WiFi network is clearly at fault here since multiple devices are having the same problem.

What changed immediately before you started having problems?

Sounds like there may be too much latency on the network for the incoming calls to connect.

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Answer 4

Rupp2758 Author

Level 1

38 points

Dec 5, 2024 9:54 AM in response to KiltedTim

As far as I know, the only thing that happened was either an iOS update or a new phone. I’ve wondered if changing to the internal Sims made a difference.

I’m not much of a Wi-Fi system person. I don’t know how to check latency. The firm that maintains the system says it isn’t the system, but I don’t know how to test do you have a suggestion?

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Answer 5

Dec 5, 2024 10:06 AM in response to Rupp2758

I wonder about new iPhone. iPhone 16 Pro Max has a form of WiFi 7. I wonder if your network is having issues with the new device and slowing down the whole network. Conceivably the network is slowing to the slowest device.

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