Q: 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.