The Panasonic KX-TDA0155 is a 2-channel DECT cell station used with Panasonic phone systems. It connects wireless DECT handsets to the PBX, allowing two simultaneous calls. It operates in the 1880–1900 MHz band and requires a cell station interface card in the PBX. Compatible with systems like the KX-TDA, KX-TDE, KX-NCP, and handsets such as KX-TD7685/7695/7696.