iPhone X VOIP calls failing

I had the same issue and was on a call with Apple support to try and resolve. I tried the same things mentioned above and they were all guesses from Apple support. However, using the “Reset All Settings” did the trick for me as well and resolved the issue. My VoIP calls with WhatsApp and Facebook Messenger are now working on my iPhone X after applying Reset All Settings.

If your problem is calls being disconnected and you have the Apple Folio case and when tou make the calls you close the lid, then that might be the problem. The iPhone X disconnects the call whenever you close the lid. That was the case with my phone. It didnt happen with my iphone 6s but with the X it happens. Hope it helps

go to the iPhone settings, down to general and then enter general, scroll down to reset and then enter reset. Choose reset all settings. This is the first option that you will see at the top of the list of resets. Enter the pass code for your iPhone.

Note carefully the statement " this will reset all settings and your Apple pay cards will be removed. No data or media will be deleted". if you are willing to proceed then press " Reset All Settings" which Is displayed in red.

I did this and it has worked very well for me. However I have nearly 200 apps and I had a lot of settings to re-store which took about three hours.

Some people have suggested that this reset cure is not permanent. All I can say is that I did this about four or five days ago and all of my VoIP functions are still working fine.

Hi,

I was having the same issue and reinstalling the whatsapp didnt work

Reading more blogs I found this solutions and it worked:

Turn off hearing aid setting:

Please try to turn off hearing aid compatibility as this seems to interrupt VOIP calling.

Go to General->accessibility->turn off hearing aid compatibility. This should get the issue fixed.

Hope it works for you too.

Thanks. Disabling hearing aid has resolved this issue for me.

Hey thanks so much,

I had the same issue for weeks couldn’t make calls over WhatsApp on my iPhone X after resetting all settings now works perfectly, your the best 😉

After reset all settings the VOIP start working issue resolved.

Hi I encountered the same issues. I however noticed the calls only work when the headphone is plugged in. Strange ! !but that’s the solution for me now.

Go to general,accessibility,turn off hearing aid compatibility

And everything will work again

It worked for me after I updated to 11.2 iOS and then did a complete erase and reset

Just go to settings / general / reset / reset all settings

Good Luck

Take it easy my friend, go to settings,general, accessibility, and turn off hearing aid, after that everything will work properly👍-1F3FB;👍-1F3FB;