This Certified Refurbished product is tested and certified to look and work like new. The refurbishing process includes functionality testing, basic cleaning, inspection, and repackaging. The product ships with all relevant accessories, a minimum 90-day warranty, and may arrive in a generic box. Only select sellers who maintain a high performance bar may offer Certified Refurbished products on Amazon.com. Enjoy a speakerphone that can keep up with your calls. Increase participation by allowing both ends to speak-and be heard-at the same time for conversations that are more true to life.. Know who's calling with caller ID/call waiting. Handset displays the name, number, time and date of incoming calls.. Silence the ringer on the handset and base unit momentarily, or for an extended period of time.. Expandable up to 5 handsets with only one phone jack. This unit uses the CS6909 accessory handset (sold separately)..