Office Phones is a full featured small office phone system and very powerful. It feature includes caller id, call waiting caller id, backlit LCD display with adjustable angle, 3 lines of display, check vmail button to retrieve voice mail, voice message indicator along with number of messages, call count, 99 name and number phone directory, speakerphone, 2.5mm headset jack, data port, clock with date hands free intercom and paging, speaker, ringer, and receiver volume are all adjustable. It includes feature keys for send to voicemail, pick up, intercom, page, park, un-park, transfer and conference, join, trade calls, cancel transfer, desk or wall mount.