Hi,
I'm new owner of 10U, but I'm not so happy as I could be :). Everything becouse of the problem with universal pairing option. After all try I can see response (lighting led) on both intercoms (Sena and other)  but just after that i hear in 10u speaker "Intercom failed try again later".
I'm really disapointed becouse before buying 10U I borrow from friend Sena 10R and it works properly with my second non Sena intercom...
Can You find some solution for me ?