Registered text user

Overland Park, Kansas
January 29, 2016 11:59am CST
When I try to sign into my facebook account It says I must be a registered text user how do I sign up for this Thanks
1 response
myLot Prince (LOL)
@trivia79 (7827)
• El Segundo, California
2 Feb 16
really? it's asking you for a phone number?