Speed dial (by 2 users)

For System Speed dial, you can only do it from a port with Attendant Features. Typically they are ports 1 and 2.

Assuming they are still the default settings, the available System Speed Dial bins are 00 thru 79.

from one of the Attendant Ports:
Press Feature
Press Redial
Dial in the memory location bin number (00-79)
Press "9" for the Trunk Access Code (or whatever it is)
Dial in the Phone Number (24 digits max)
Press Feature

To use, get DialTone, press Redial, enter bin number (00-79)