Chosen Solution
Suppose if I want to call anyone. And I call that person it shows “call declined” and I hv to try 2-4 times to get the call function properly. And if the other person calls me and I accept the call we both can’t here each other speaking. This isn’t a network or a sim issue cause I have tried using the sim on different phones.
First back up your phone and then factory reset this should fix your problems
