one to use.
AC power adapter
POE(Power over Ethernet) IEEE802.3af
USB(Standard 0.5A)
Note: If inline power (PoE:Power over Ethernet) is provided, you don't need to
connect the power adapter. Make sure the Ethernet cable and hub/switch are PoE
compliant.
3. Phone User Interface
3.1 Hardware Component Instructions
The main hardware components of the 150IP-3P IP Phone are the LCD screen and
the keypad.