Microsoft Lumia 640

Microsoft Lumia 640

You can't make voice calls - Microsoft Lumia 640

Cause 1 of 9: Caller Line Identity hasn't been turned on in your price plan and you're trying to make a call with your caller identification shown when roaming

If Caller Line Identity hasn't been turned on in your price plan and you're trying to make a call with your caller identification shown, your call won't go through when roaming.

Solution: Turn off your own caller identification.

Step 1 of 6

Find "settings"

Press the phone icon.

Step 2 of 6

Find "settings"

Press the dots in the bottom right corner of the display.

Step 3 of 6

Find "settings"

Press settings.

Step 4 of 6

Turn your own caller identification on or off

Press the field below "Show my caller ID to".

Step 5 of 6

Turn your own caller identification on or off

Press everyone, no one or my contacts.

Step 6 of 6

Return to the home screen

Press the home icon to return to the home screen.

1 Find "settings"

Press the phone icon.
Press the dots in the bottom right corner of the display.
Press settings.

2 Turn your own caller identification on or off

Press the field below "Show my caller ID to".
Press everyone, no one or my contacts.

3 Return to the home screen

Press the home icon to return to the home screen.

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