I can't send or receive text messages from some people. Some are Verizon customers and some aren't. They also can't send me text messages. When I try to send I get a Not Delivered message. I have their full 12 digit phone numbers and have tried deleting them from my contacts and re-entering. I've also tried texting them from both work and home and wifi...still no success. Help!
I have a similar problem and have tried all of the similar steps to correct this issue but to no avail. Please see my recently posted message about an ATT&T phone not receiving my texts.