Panasonic KX-NS700 Installation Manual page 96

4.2.5 Installing/Removing the Optional Service Cards
To remove a slot cover
1.
Remove the top cover.
Refer to "Opening the Top Cover" in "4.2.3 Opening/Closing the Top Cover".
2.
From the inside, push the tab of the slot cover to the right and push out the left edge of the slot cover.
Tab
96 Installation Manual Document Version 2016-03