Allows Technician to work while waiting * Compatible with Force-Access and Automated Voice-Response Systems * 3 Speaker Volume Settings * Locking Mute * Consistent Audio Quality * Built for Speed * 9 Location, 18 Digit Dialer Gives Rapid Access to Test Boards, CO and Frequently Called Numbers * Redial Pause * Speed Dial * Tone/Pulse * Polarity LED * Obtained Secondary PBX Dial Tone * Contoured Handgrip * Nonslip Dialing Keys * Spring Loaded Belt Clip - with ABN clips