5 cordless handsets included - only 1 phone jack required! 5 handsets provide the flexibility your home or office needs. Built-in digital answering system holds up to 14 minutes of recording time. DECT 6.0 digital transmission delivers secure calls with less interference. Handset speakerphones allow for easier multitasking. Caller ID/call waiting lets you know who's calling before you pick up the phone. Quickly scroll through the 50-number memory. (Service is required from your phone company) 100-name/number phonebook keeps your important contacts at your fingertips. "Any-key answer" for more convenience.