Try four cordless handsets for now, consider expanding to up to 6 handsets down the road. This Panasonic phone 2-pack, with caller ID, features 1.6" amber backlit LCD screen that is easy to see even from a distance; amber lighted keypad makes calling easy even in dark room; night mode; program up to 30 numbers in the Call Block list to eliminate calls from unwanted sources by sending a busy signal; dedicated intercom button makes room to room communication between handsets possible; 3-way conferencing; intelligent ECO mode extends your battery life for longer conversations; hands free speakerphone; high quality ringer; handset locator button; and rechargeable AAA (Ni-MH) batteries.