DESC: RCA included all of the function that you need in your Small/Home Office (SOHO) in this 4-line business phone with Caller ID and Digital Answering System. For added versatility, the data port provides connection for a fax, modem or answerer with line selector and you can add an optional DECT 6.0 cordless handset.Enjoy hands-free dialing and auto-transfer to the handset with the full-performance speakerphone. The large, easy-to-read LCD display provides quick reference for the clock time and day, number dialed, memory verification, call timer and memo.