I'm trying to text a friend on his cellphone (also a Telus carrier) but it gets sent to a "land line". It says "Message was successfully delivered to an answering system at phone number blah blah. Thanks for using Text to Landline from TELUS". Whenever I try text he recieves it as a call. He can text me no problem, I recieve his texts I just can't text him. We have been texting back and fourth for awhile now but the problem has just come up today.. Anyone know how to solve this problem?