AT&T Dual Handset Cordless Telephone DECT 6.0 - 2 Handsets AT3211-2 Includes 2 cordless handsets  only 1 phone jack needed. Add up to 3 more cordless handsets whenever you need (additional handsets sold separately). DECT 6.0 digital technology for secure, interference-free conversations. Handset speakerphones let you type, write or even cook as you talk.Caller ID/call waiting lets you know who's calling before you answer. Caller ID/call waiting lets you know who's calling before you answer. Intercom between handsets for more convenience. /Lighted keypad for easier dialing.