I have sent texts to known cell phone lines, even verizon cell lines and have recieved a message that states "xxx-xxx-xxxx is a landline # Repy Y to send all TXT messages to this # as voice messages for 0.25/msg. + std msg fee. Details @ vtext.com, TexttoLandline
Why is this? It happened the other day when I know I have texted that person before. And tonight it did it again and I know for a fact that phone is a verizon cell phone. And she cannot send me texts either.