I know this is an old post but here is some info anyway.
You didn't say if you have a t-coil or not, if you do I found
a headset from gn resound it is a jabra model bt-100-tc.
works great except for the mike, it doesn't block background noise
verry well.
Gn resound has a new model out model 6110-tc, havent tried it yet so don't know if the noise reduction is any better or not.

hopt this helps

cmpnfvr