THIS IS A DECT MANAGER ONLY, NO BASES INCLUDED, DOESNT COME WITH POWER SUPPLY WORKS WITH POE, 

Yealink W80DM DECT IP Multi-Cell DECT ManagerPlease Note: This device does not come supplied with a PoE injectorThe Yealink W80DM DECT IP Multi-Cell DECT Manager is designed to provide organisations that require wireless coverage with easy deployment. This Yealink W80DM DECT Manager creates an extremely scalable and reliable solution for organisations of any size and shape. The Yealink W80DM DECT Manager supports up to 100 handsets and 100 simultaneous calls, not only ensuring one call in each handset, but also allowing you to get rid of the limited wireless coverage of only one base station. Meanwhile, the Yealink W80DM DECT Manager can work with Yealink W53H, W56H, CP930W and DD Phones (sold separately, see accessories tab) with seamless roaming and handover of calls, making freely mobile communication in and between each zone achievable. The Yealink W80DM DECT Manager combines modern, compact design with Yealink HD voice quality.Key FeaturesSeamless handover and roamingUp to 100 parallel callsUp to 30 base stationsUp to 100 handsetsUp to 100 SIP accountsSupport XML/LDAP/Remote PhonebookSupport Xsi DirectoryDECT radio coverage up to 50m indoors and 300m outdoorsDECT technology:Yealink DECT technology is based on CAT-iq2.0, which focuses on high quality Audio VoIP (wideband), as well as low bit-rate data applications. Not compatible with any third-party DECT devices (base station, handset, etc.).Support OpusSupport PoECompatible with Yealink 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)