D-Link DPH-50U Quick User Manual page 8

Connect the USB cable to the D-Link USB Phone Adapter for SKYPE USB
port as shown below:
The other end of the USB cable must be connected to a USB port on your
computer as shown below,
Connect NB
Connect PC
or to an AC Powered USB hub.
The D-Link USB Phone Adapter MUST not be connected to a bus
powered USB hub.
You will see the following Windows New Hardware Found Wizard.