The Yealink W80DM DECT Manager is based on CAT-iq2.0, which focuses on high-quality Audio VoIP (wideband), as well as low bit - rate data applications. It is not compatible with any third-party DECT devices (base station, handset, etc.). It supports Opus and is PoE. This product is compatible with the following Yealink products: W56H/W53H (version x.83.0.90 or later), CP930W (version 87.83.0.60 or later), and DD Phone (version 66.84.0.115 or later). The W80DM is shipped as a DECT Manager (DM) and the W80B is shipped as a base station. If you want to change the device role of the device, contact your system administrator to upgrade the firmware.