I'm not a doctor but HOW IN THE HELL DOES HE GET TO BE THE FIRST PERSON TO TALK TO HER? DID SHE COMA DIAL HIM?!? There had to be a family member in the room who she would recognize first rather than a voice on the phone.
I guess maybe you can believe Te'O if you're willing to believe that multiple people were jerking around with him on the phone, and for hours at a time. And you are also willing to believe that Te'O is mind-numbingly dumb. And that a chiseled football god would rather be in a long distance relationship with a woman he's never met rather than date the flesh-and-blood girls on campus.
Even still though, his father is quoted as claiming that Kekua came to visit in Hawaii. Which means that Manti either lied to his father about her visits, or his father is lying to the press about her visits.