IP Phone ITL-2E-1P is without display. Can I reset the IP Phone to default setting when the IP Phone is disable the DHCP setting and I don't know the IP address?

Does The Display work when You First Plug it In?

The IP Phone is NON-Display.I can input on the phone.

Try putting the fone on a stand alone POE switch and run IP Phonemanager and do a scan for it, if you find it access it and do any changes. If you can't see it then download a program like Angry IP scan https://www.angryip.org/w/Home and do a scan. If found then try and access it with a web browser.

I always talk people out of 2 button IP fones as they are real pigs to deploy and fault find. About time they were delete from the fone catalog. The TDM version are fine for the back office and lunch room etc..