Verizon calls straight to voice mail

App & System Services Hardware
Vermyndax OP
Created Dec ’20
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This has happened on my previous XS Max running 14.1 and is now occurring with my iPhone 12 Pro Max on 14.2.1.

If I enable or disable wifi calling on the phone, I can receive phone calls for about 30 minutes. Afterwards, all remaining calls will go straight to voice mail. Toggle wifi calling on or off again and it will work again for another 30 minutes.

I have tried:

  • Reset network settings

  • Wipe and reload

  • Toggle airplane mode

  • Toggle cell

  • Turn roaming on or off

The only thing that seems to impact this is toggling wifi calling.

From searches on the net, this has been going on for quite some time. Did anyone ever pin this down?
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Vermyndax OP
Dec ’20
This seems to be related to wifi calling.

If I have wifi calling enabled inside my home/wifi, I can reproduce this issue by:

  • Leave the house

  • Return home

  • Try to call

  • Note that calls go straight to voicemail

  • Toggle wifi calling off/on on the affected iPhone

  • Calls work successfully now

Feels like a bug. May be similar to the noted behavior of data stops working after towers switch while outside the house.
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Verizon calls straight to voice mail
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