Dell Power Connect 3324

I have 3 Dell Power Connect 3324 Switches that form my network which also serves has an IP phone system. I remember when I installed the switches they had to be set to give IP addresses only thru the Phones. However, I was able under guidance of Dell to set some of the ports so that no phone was needed. My problem is that I lost the directions that I had used and don't don't know where to start because I don't even know what to called in the manual.

Any help will be appreciated