you might want to take a look at this link to the UK Expansys site where a TyTn owner has performed a successful pairing by the looks of it

http://www.expansys.com/forumthread....TYTN&thread=33


I am currently using a P910 and have had no luck in pairing with my X5

I am currently undecided wether to go the P990 route or try out the HTC TyTn - advice anyone please