How to de-register/re-register my AT&T Marathon Mic?

    (Marathon Discontinued) THE MIC IS OUT OF THE BASE FOR DEREGISTRATION & FOR THE 1st 2 STEPS OF REGISTERING THE NEW MIC DEREGISTRATION: 1. Disconnect either the tel wall jack cord, or the base jack cord from charger base. 2. Press and Hold the PAIR button until the Mute light on the base blinks (then let go) 3. Press the PAIR button (once NOT HOLD) while Mute is still flashing. 4. ON/OFF on the headset button will turn orange and blue (this lets us know it’s deregistered) QUICK FYI’s: ***When you deregister a Marathon mic, the Lifter Mode light will blink on and off once (even if it’s in No Lifter Mode) after about 10 seconds to let you know deregistration was successful.*** the lights on headset will go from blinking red and blue slowly to blinking red and blue quickly when attempting to pair with the base. If the lights start blinking slowly red and blue again, the registration did not go through (even if the mute light is still on). deregistering and re-registering a mic works best…