Pair this cordless accessory headset with handset lifter wirelessly with many AT&T DECT phones, including the Syn248 or SynJ business phone systems. Equipped with AT&T Softphone Call Manager to merge Microsoft Lync, Skype, VoIP and landline telephone services, headset can bring online calls off the screen and into your phone system for flexible, full-access communication on one convenient system. Softphone Call Manager also displays the name, number, time and date of incoming calls for Caller ID/Call Waiting. Headset delivers up to 12 hours of hands-free talk time and crisp sound quality. DECT 6.0 digital technology offers a range of 500' to maximize mobility and provides superior audio quality and high protection against wiretapping while not interfering with wireless routers. Magnetic charger in the cradle ensures the headset fits and charges securely. Lightweight and comfortable, the headset offers multiple wearing styles: over the ear, over the head or behind the neck.