Panasonic KX-TGP600 Smart Cordless SIP Phone & DECT Base Unit.Panasonic KX-TGP600 smart cordless SIP system includes 1 cordless handset (KX-TPA60) and a wall-mountable single-cell DECT base unit. KX-TGP600 is easy to set-up and manage. Excellent for small to medium size..