Blue tube

Is anyone familiar with a T mobile cell phone unit and how to operate the modes?

I don't even have a cell phone now. but it would help me figure a mystery out if some would explain how some would disconnect intentionally

I use to butt dial the one I had lol

Could you be a bit clearer as to what you need to know Michael. Is it about a certain cell phone model or the Blue tube (radiation free) headsets?

Does it have a button that you push to prevent the external speaker built in the pone from broadcasting your conversation?

Sorry, unable to help as I have not yet figured out your question.

Do you mean the Bluetooth headsets?

Yes now that I GOOGLED It was a Bluetooth headset

Bluetooth is a little device that you stick onto your ear... headset (almost like a hearing aid contraption).

When you're talking to someone, it's only in your ear. People can't hear it unless you put the actualy phone itself on speaker phone, which is a different function altogether. Think secret service :)

To disconnect a call, you can push a button. It is basically like a phone itself, if you drive through an area where it loses service, the call drops. It's just pulling from the phone.