DESC: Looking for an advanced cordless phone system that has it all? With the SD4591, you get cordless convenience and a phone with advanced features like caller ID with visual call waiting*, hands-free intercom, and a 50 name phone book. The integrated digital answering machine is accessible from any handset in your phone system, or you can forward your messages to your cell phone. Plus, this unit includes a corded handset that's perfect for your office, with a speaker and keypad in the base for hands-free conversations.