The Yealink SIP-T48G does not come with a power supply, it is PoE out of the box. If you need a Power Supply please purchase the Yealink 5V 2A Power Supply.
Revolutionarily new design
As Yealink 's SIP Phones continue to evolve, the SIP-T48G has been designed by pursuing ease of use with a scratch-resistant 7 inch touch screen, the T4 Series' signature metallic texture, non-slip rubber feet, and ergonomic recessed buttons.
Yealink Optima HD Voice refers to the combination of software and hardware design as well as the implementation of wideband technology to maximize acoustic performance. Coupled with advanced acoustic clarity technology such as full duplex, echo cancellation, and an adaptive jitter buffer, the SIP-T48G creates an amazing face-to-face experience.
A rich visual experience for applications
The SIP-T48G supports vast productivity-enhancing features such as a XML Browser, call forwarding, call transfer, 3-way conferencing, and support for a vast number of UC platforms for a superior UC experience. The 7" 800 x 480-pixel color touch screen with backlight enables rich visual presentation and easier menu navigation.
For network connectivity, the SIP-T48G comes with two Gigabit Ethernet ports, one of them suitable for Power over Ethernet. The SIP- T48G also includes a built-in USB port, which supports Bluetooth headsets with the Yealink BT40.
EXP40 expansion module. click here