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HP Recommended

My company bough a number of Desk phone HP 4120 but they all failed to power on. I tried power over ethernet because they did not come with power adaptors. Was the whole lot faulty or am missing something?

1 REPLY 1
HP Recommended

According to the manual, that model does not come with a power supply.  If it will not power over the Ethernet, then it must not be present on your Ethernet.  Step 3 of the Quick setup

Connect the Ethernet cable into the NET port (left-most
port). If you are not using PoE, also connect an HP 5V
power supply. Caution: A 48V supply, as used by other IP phone
vendors, will permanently damage this phone. Use only a Hewlett-
Packard (HP) 5V external power supply (J9767A)
You will need the J9767A power supply.
OR

I'm not an HP employee.
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