Uniden DECT 6.0 Cordless Loud & Clear™ Extra Handset, White, with Charging Cradle For D3097 & D3098 Series Phones. The DCX309W (white) Cordless Handset is a great addition to your D3097 & D3098 Series phone system. It features a Caller ID/Call Waiting display and orange backlit keys that are easy to read. Caller ID/Call Waiting display. Use as an extra handset for your phone system. This handset requires either a corded or cordless base telephone system. This is only an add-on handset and requires a D3097 & D3098 base phone system to function.