- The VTech DS6151 DECT 6.0 2-Line Expandable Cordless Phone will bring you a wide variety of extras in a landline headset. It features DECT 6.0 digital technology for calls that are protected from eavesdropping and the telephone is expandable up to 12 handsets ensuring that every room can have access. - This cordless phone with digital answering system is free of interference ensuring that you can clearly hear every conversation with ease. It offers a directory that will store 50 names and numbers to keep track of the important people you need to call. It has the ability to handle conference calling so you can even talk to multiple people at the same time. - This cordless phone is compatible with headsets so you can go hands free if needed. It has call waiting for your convenience. - The VTech DECT 6.0 2-Line Expandable Cordless Phone with Answering System even has a back-lit keypad and display so you can always see who is calling.