Cisco Learnings

Cisco IP Phone Factory Reset ;-)

Posted on: September 10, 2010

Hey Guys !

Thought might just post this for someone wondering around how to Factory Rest Cisco IP Phone as not many people know this. Main reason you might consider factory reset is sometime it might wont register with Call Manager or unable to grab IP Phone address from DHCP or Config File from TFTP for no reason or just to delete LSC (Local Significant Certificate or Manufacturer Certificate) when you implement Security within your Call Manager environment.

1 – Unplug your IP Phone either from Wall Power Socket or PoE
2 – Hold # for like 3 or 4 sec
3 – The phone will now blink for few secs and ask for CODE.
4 – Now Enter 123456789*0#

That’s it, you are good to go.


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