Issue 3.0
5-80 Installing DT Series Digital and IP Multiline Terminals
2. Pull down on the tab and lift the Numbered Keypad away 
from the telephone to remove the existing button. Refer to 
Figure 5-85 Removing Numbered Keypad from DT300/
DT700 Series Terminal.   
5.2.6.2 Installing the Numbered Keypad
1. Slide the replacement numbered keypad into the grooves 
located on the inside of the telephone, then press down on 
the keypad to snap it into place. Refer to Figure 5-86 Install 
New Numbered Keypad into DT300/DT700 Series Terminal.   
Figure 5-85 Removing Numbered Keypad from DT300/DT700 
Series Terminal
Figure 5-86 Install New Numbered Keypad into DT300/DT700 
Series Terminal