Galaxy s3 Call issues
I've seen similar post for the EVO but none for Galaxy s3. I'm have 3 calling issues with my phone. First is a 1-2 second delay on cellular calls. The second is on most calls I can hear the receiver but they can't hear me. The third is calls don't always hang up. I press the Hang Up and the screen goes away but the Phone notification shows in notifications and if I press it it brings me back to the calls as if I never pressed Hang up. I've read that resetting something and entering an MLS code may fix these issues but how do I do that?