Turn On / Turn Off; Lock And Unlock Keypad - Denver BAS-18300M User Manual

inside the rear of the phone. Insert the micro-SD card as below
shown, with the golded contacts facing down. Open the metal
shutter by pushing it towards "open", and lock it again after
inserting the card by pushing it in the opposite direction ("lock").
Turn ON / Turn OFF: To turn on and turn off the phone, press
and hold the red end call key.
Lock and unlock keypad: Press the left soft key and * key to
lock/unlock the phone.
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