Best bluetooth headunit?

[Lumps of cheese]

Hey all,
I've recently decided to use bluetooth headunits in our trucks since the hardwired kits it seems are useless. I'm running a pioneer 7850bt in my ute and seeing as it goes great, i decided to trial 2 of the newer 7050bt in 2 trucks, big mistake it seems.
For starters, 3 different brand of phones, Nokia, LG and Telstra didn't want to connect at all to the unit. I got hold of a software upgrade and it seems that it now likes the nokias but unfortunately doesn't like the telstra ones, which we have more of! (model zte f165)
Does anyone know of a headunit that will be compatible to at least the LG? (bosses phone)
I'm not too concerned about what brand it is, as long as the quality of the bluetooth is as good as the pioneers then i'd be happy
Any help would be appreciated.

[adamc11]

From my experience the Pioneer HU's are the best and the bluetooth has always worked without a problem.