No sound when making or receiving calls
When I answer an incoming call on my iPhone 7 plus, I can hear no sound, even though the phone shows the call is connected. This is also true when I make a call. If I reboot the phone, the problem resolves itself however, it returns a short time later.
I've also noticed that when the phone is in this state, the voice to text function does not 'hear' what I am saying.... there are no sound waves that appear on the pattern bar.
I have checked all settings and reset the network settings. The only other thing I can think of is to reset the entire phone, but I am reluctant to do that.
Any idea what the problem is?
iOS 14.4
iPhone 7 Plus, 14