Noise Reduction: Corded landline telephone has a noise reduction feature that helps prevent outside noise and gives you a clear voice when calling. Speed Dial: Corded landline telephone features a speed dial group that allows you to store frequently used numbers in case of emergency. Dual Interface: Corded landline telephone features a dual interface design that allows you to connect your phone and switchboard or extension, POS, fax machine at the same time. Caller ID Display: Corded phone has DTMF, FSK dual system auto ID and caller ID. With mute function to help guard your secrecy. Pause and Hold: Corded phone has a pause and hold feature that allows you to press pause or press and hold the button to pause the call. Then press the pause or hold button to resume communication.