Vtech MI6807 User Manual - Page 8

• If the de-registration process does not work, you may need to reset the system and try again. To reset, pick up the handset and press the TALK button. Press the OFF button and place the handset back into the charger. Registration To de-register all handsets If you are replacing a handset on a system which already has the maximum number of registered handsets, or if you wish to change the designated handset number of your registered handsets, you must first de-register the handsets, then re-register all handsets. 1. Press and hold FIND HANDSET on the main telephone base for 10 seconds. 2. When the IN USE light starts to flash, release the FIND HANDSET button. 3. Pressing and releasing FIND HANDSET again will de-register all handsets and the IN USE light will be off. 4. All handsets will show NOT REGISTERED. NOT REGISTERED  www.vtechphones.com