I (iphone) unblocked a contact(iphone) and now I can't send or receive any phone calls from them. When they called me I was able to answer the phone but was not able to hear anything. When I tried calling them it goes straight to voicemail. I was able to receive a text from them but it came through as a sms. When I try to text them it says imessage but never says delivered, just turns green. I have updated, reset my phone and deleted the contact but none of that seems to work.
