DECT 6.0 Digital Technology</br>Handset/Ringer Volume Control</br>Headset Compatible (2.5 mm jack)</br>Last 20 Number Redial</br>Accessory Handset Only For use with AT&T model 86109</br>DSL Subscribers may need to us a DSL Filter</br>For optimal performance batteries should be charged for 16 hours prior to use</br>DECT 6.0 Digital Technology</br>Requires TL86109 Base to Operate</br>Handset/Ringer Volume Control</br>Headset Compatible</br>Last 20 Number Redial</br></br>Product Description</br></br>High Quality DECT6.0??1 CRDLS HS??CID</br><br/>http://www.amazon.com/gp/product/B003BNY7PW