TMC VMAIL VM2000 2-Line Expandable Phone System with Call Waiting Caller ID & Voice Mail Navigation Buttons Features: * TMC 2 Line speakerphone * Caller ID, call waiting caller ID * 99# Caller ID history * 80# Phonebook * Caller ID display dial * Access up to two separate phone lines at the touch of a button; you can place any call on hold and switch to another line * Dual color line status indication: line lamp lights green if you are using the line, or red if someone is using the line at another station