This is a PoE Capable device and a power supply is not included
The HP 4120 IP Phone
Series is optimized for use with Microsoft® Lync™ Unified
Communications, and can support Office 365, Microsoft's familiar Office
desktop suite combined with the latest, cloud-based versions of
Microsoft's next-generation communications and collaboration services.
All Lync-optimized IP phone features are supported
by the HP 4120 IP Phone Series, including Microsoft's "Better Together"
mode, which leverages Lync's powerful collaboration capabilities. The HP
4120 IP Phone Series is ideal for small enterprises and small-to-medium
size businesses who wish to reduce infrastructure spending and provide
the benefits of unified communications delivered through cloud services.