Lower your expectations?
No, I'm not saying that to be mean or rude- just realistic approach to the problem. You wasted more time than this feature EVER was worth sending an engine back to lionel. I mean seriously, this isn't MR. Microphone, it's a train. Bluetooth being what it is as a huge mess of versions and protocols, add on top of that, an app that runs on top of the OS and hardware in your phone- not to mention carrier specific issues of OS specific settings.
Again, this concept, of taking random phone or tablet X, with all kinds of different hardware chipsets, microphones, audio chips, processor, operating system and settings, and then some app sitting on top of all of that, taking audio from a microphone, encoding that into a bluetooth audio stream, your phone or tablets bluetooth chip even supporting the function- let alone doing it sustained, and then typical RF the engine then has to receive and decode it.
Many phones and tablets crash or blocked the app at various times just because of this feature. The app would crash until they released a new version.
Bottom line- voice streaming and voice recording were add on features, and let's be honest, broke more than they ever were worth. They ultimately are the root cause of a lot of the Lionchief apps problems and compatibility on whatever phone or tablet they get loaded on.
Again, my honest, no joking advise, treat that feature (Voice Streaming) for the gimmick it is. Don't use it, and don't expect it to work flawlessly.