Register the DCX770 expansion handset to main base
1) Before registering the extra handset, the battery pack MUST be charged for
2) Place the extra handset in the main base unit to begin registration.
3) While the handset is registering, Handset Registering will appear in
the LCD. When Registration
Complete is displayed, the handset has been registered to the base. If Registration Failed appears, please try these steps again.
Register the DCX640 or DCX700 Backward/ Forward Compatible Handsets to main base
1)Press and hold the Registration button on the back of the base.
2)Keep pressing the Registration button on the base until all LEDs on main base start to blink.
3)On the handset, press and hold # until you hear beep.
note 
Your phone maybe compatible with other Uniden 2.4Ghz Digital Expandable Systems. Look for the technology icon on our boxes or visit our website for a list of compatible models.
Expanding Your Phone
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