Connectivity issues with Halo 2 and iPhone 6Plus

Anybody having problems losing connectivity during a bluetooth call on your Halo 2s??? People suddenly can't hear me, as if I've dropped the call. If I try to switch the call to the phone speaker, that doesn't work. For the first time tonight, the call "recovered." Others were lost and had to be redialed. I feel like it's a bluetooth signal being lost or something. Very annoying.