The Vigor 2710 V Dn supports all of the features of the Vigor 2710 Vn with the addition of a fully-integrated built-in DECT base. A DECT phone is a cordless phone that you typically use around your home. The Vigor 2710 V Dn is GAP Compliant which means you can use any DECT phone which is also GAP compliant, which most are. You can use DECT phones that you already have ones, but either way instead of connecting to their original bases, they will instead register & communicate with your Vigor 2710 V Dn. You will still need the original phone base station to charge the phone. Once the phone is paired with the Vigor 2710 V Dn, they will still have access to your analog line & but also be able to make full use of a Vo IP service. The Vigor 2710 V Dn acts as a mini PBX (switchboard) so that you can call between handsets by dialing their extension number or transfer calls between them. The wired or DECT phones can make several simultaneous calls using any combination of your analog or Vo IP/SIP lines; most regular DECT systems do not allow operation of multiple handsets at the same time for separate calls.