How do I switch my MMU-II between TEL and P-T-T?
- From the MMU Ready page, push and turn the knob three clicks clockwise to reach Voice Mode.
- Press and release the knob to open the TEL / P-T-T menu.
- Turn the knob to highlight the mode you want.
- Press and hold the knob for 2 seconds. The display shows "Mode Change Successful."