The 4-Line Expandable Business Phone System from AT&T supports up to 11 users. Its features include call waiting, caller ID display and hands-free speakerphone capability, among many others. DECT 6.0 technology also provides superior voice quality and range.
Features of AT&T SB67138 SB67138 DECT 6.0 Phone/Answering System, 4 Line, 1 Corded/1 Cordless Handset
Sold as 1 EA. Four-line SynJTM system base is expandable up to ten handsets or desksets.