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I have problems making voice calls on my Apple iPhone SE (2020)
If you have problems making voice calls, there may be several causes of the problem.
Press Settings.
Contact customer services to have your number reactivated.
Slide your finger upwards starting from the bottom of the screen.
Contact customer services to have a new SIM sent to you.
Try making a call later when you're in an area with better network coverage. View our network coverage map.
Try making a call later or when you're in another area. Check the network status in your area for planned or unforeseen events, such as maintenance or outages which may affect your O2 services.
Try making a call to another number.
