How to set up Windows DHCP Server
How to configure Windows DHCP for Avaya IP telephones(Compliments of Kyle L Holladay, Sr, R.I.P.)
In this example we will configure Windows DHCP for Avaya IP telephones. In addition to your standard Option 003 Router you will also need a custom scope option in order for an Avaya IP phone to boot properly using DHCP. While I do reference the IP Office in this document the content is not specific to the IP Office. Options 176 and 242 are common to all Avaya IP telephones and this method would work equally well for phones connected back the an Avaya Aura or Avaya Communication Manager (aka ACM or CM)