Bluetooth Headset Walkie Talkie Does The Regular Mic On A Cell Phone Work While Hooked To A Bluetooth Headset?

Does the regular mic on a cell phone work while hooked to a bluetooth headset? - bluetooth headset walkie talkie

I wondered if the microphone is turned on a standard mobile phone when a bluetooth headset is connected .. If so .. a means of Bluetooth communication .. Bluetooth without the help of satellite mobile .... You know. .. .. more like a walkie-talkie concept of streaming audio on 2 channels