I can't seem to be able to text this one friend. I just got my phone (LG Harmony) and I put in his number and tried to text him, but it won't reach him and it says retry under the text. He can text me but I can't text him, also I can't send any text in a group chat he is a part of. Now my brother has the same phone as me and doesn't have this problem.
His number also is like this on my phone: *4563453897, instead of all of my other numbers which are like (565)8688-897. His phone is an old iphone if that is any help (don't know which one).
Any help solving this problem would be appreciated.

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic