KXT 616 easaphone KXT 616 easaphone OhioTelecom (Vendor) (OP) 30 Nov 05 20:20 Is it possible to do a renumber on the Ext.? They lost all programming and now they wsare 13 used to be 18. I see nothing in the dusty old manual about it. RE: KXT 616 easaphone jamie77 (Programmer) 2 Dec 05 16:32 Sounds like someone id confused.KX-T's don't have flexible numbering. In fact they don't have much of anything!!!!!!!!!!