I am having a problem texting. When I try texting someone with 1 (516) xxx-xxxx, I get an error message that I need a valid 10 digit number or a valid short code. When I try texting using (516) xxx-xxxx I get the same message. I also tried using xxx-xxxx too and I get the same message. Any ideas on what I am doing wrong? For some strange reason when I text my wife who has a different area code than I do, the text goes through. I am in the 516 area code and my wife's cell phone is in the 646 area code. My wife's number is listed as 1 (646) xxx-xxxx and the text goes through. Any ideas? Please help.