AT&T CL80107 (3-Pack)... The AT&T CL80107 is a phone system equipped with DECT 6.0 digital technology which delivers excellent sound, enhanced security and range. The phone is expandable up to 12 handset using only one phone jack. It has an ECO mode power-conserving technology... The CL80107 has a 50-entry phonebook directory. The phone has additional features like caller ID announce, push-to-talk, extra-large display for easy viewing, volume control, any key answer facility and English/Spanish/French language setup menu... CL80107