Panasonic KX-T7200 Series telephones bring you the advanced features available with Panasonic's Digital Super Hybrid Telephone Systems as well as the ability to adapt to an expanding office environment.??Featuring the revolutionary eXtra Device Port (XDP), KX-T7200 Series phones offer unprecedented flexibility. The XDP is a built-in RJ-11 jack that enables you to connect any single-line device, doubling your connection capacity without additional cards or wires. The XDP is a separate extension, so you can use both phone devices simultaneously. Fax a document while talking on the telephone. Carry on a phone conversation while transferring data from your PC to another. With the XDP you can customize each workstation to the requirements of the individual user. Flexible Central Office (CO) Line Buttons enable you to individually program each telephone for either Direct Station Selection (DSS)/Busy Lamp Field (BLF), automatic dialing or one-touch access to the feature each employee uses.