Discontinued item Amplified Phone with Caller ID The Clarity Professional C2210 featuring their new Digital Clarity Power technology provides intelligent amplification to make soft sounds audible, while keeping loud sounds bearable. DCP intelligently amplifies the human voice, eliminates distracting echoes, reduces noise and suppresses sharp, sudden sounds in telephone conversations. C2210 Amplified Corded Phone Features Multiband Compression Acoustic Echo Cancellation Noise Reduction More C2210 Clarity Professional Features Increase incoming sound up to 50 decibels Two (2) tone settings to customize your listening experience Call Waiting Caller ID with 50 name and number history Built-in alarm clock Optional Bed Shaker and Lamp Flasher for additional ringer notification Phonebook with 50 name and number memory Two (2) one-touch emergency speed dial keys Adjustable extra-loud ringer (95+ dB) Large lighted dial pad flashes when phone rings Lamp button operates the light source connected to the optional Lamp Flasher notification accessory Tone/Pulse setting Redial and Flash buttons 3.5mm Bed Shaker jack Lamp Flasher jack 3.5mm neckloop jack 2.5mm headset jack Hearing Aid Compatible One (1) Year Limited Warranty Other part numbers for this product: 51408.001 More About Digital Clarity Power: What is DSP? Clarity ® a division of Plantronics Inc. (NYSE:PLT) is the first manufacturer to offer DSP enhanced amplified telephones.