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Messenger calls are not working on iPhone 12 dual sim

Please help

Messenger calls are not working on iPhone 12 dual sim


1- It's dropped down and can not continue.

2- too much delay in the conversation

3- I can not make the call unless disabling one of my dual sims or connecting with WIFI.


I tied many solutions but unfortunately still the same issue like:


1- Restart the iPhone

2- The IOS system is up to date and Messenger up to date

3- Remove the Messenger and downloaded it again

4- Disabling Data roaming for the sim cards

5- Allowing Switch access to cellular data


I appreciate your help and your cooperation

Hany Elmancy

iPhone 12 Pro Max, iOS 14

Posted on Jan 30, 2021 10:54 PM

Reply
Question marked as Top-ranking reply

Posted on Jan 31, 2021 12:41 AM

Change your cellular data number

One number at a time can use cellular data. To change which number uses cellular data, follow these steps: 

  1. Go to Settings.
  2. Tap either Cellular or Mobile Data.
  3. Tap Cellular Data. 
  4. Tap the number you want to use cellular data. 

If you turn on Allow Cellular Data Switching, then while you're on a voice call on your voice-only number, that number automatically switches to use voice and data.* This lets you use both voice and data while on the call.

If you turn off Allow Cellular Data Switching and you're active on a voice number that isn't your designated cellular-data number, then cellular data won't work while you're on the call.

To turn on Allow Cellular Data Switching, follow these steps:

  1. Go to Settings.
  2. Tap either Cellular or Mobile Data.
  3. Tap Cellular Data.
  4. Turn on Allow Cellular Data Switching.

* Your data line switches automatically for the duration of your call. This cellular-data switching will not work if you are currently using Data Roaming. Check with your carrier for availability and to find out if additional fees apply.



5 replies
Question marked as Top-ranking reply

Jan 31, 2021 12:41 AM in response to TonyCollinet

Change your cellular data number

One number at a time can use cellular data. To change which number uses cellular data, follow these steps: 

  1. Go to Settings.
  2. Tap either Cellular or Mobile Data.
  3. Tap Cellular Data. 
  4. Tap the number you want to use cellular data. 

If you turn on Allow Cellular Data Switching, then while you're on a voice call on your voice-only number, that number automatically switches to use voice and data.* This lets you use both voice and data while on the call.

If you turn off Allow Cellular Data Switching and you're active on a voice number that isn't your designated cellular-data number, then cellular data won't work while you're on the call.

To turn on Allow Cellular Data Switching, follow these steps:

  1. Go to Settings.
  2. Tap either Cellular or Mobile Data.
  3. Tap Cellular Data.
  4. Turn on Allow Cellular Data Switching.

* Your data line switches automatically for the duration of your call. This cellular-data switching will not work if you are currently using Data Roaming. Check with your carrier for availability and to find out if additional fees apply.



Messenger calls are not working on iPhone 12 dual sim

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