Panasonic KX-TPA60. Brand New Includes Two Year Warranty.. The Panasonic KX-TPA60 is a SIP Dect Cordless handset & base unit set. The handset works with your KX-TGP600 phone systems. The device keeps your calls secure through its SIPS/SIP-TLS technology along with Single IP management feature which incorporates virtual stacking over IPv4, IPv6 or even IPv4/IPv6 dual mode. When combined with the KX-A406 repeater, they provide wide-ranging coverage... Employing DECT 6.0 technology, this handset offers virtually interference-free performance in any work or residential environment. A color LCD display with backlight delivers information clearly in every office environment, while the ability to store 500 phone book addresses and 20-last number dialed records improves ease of professional use making it quick and convenient.