Specifications

Step 1 Press ENTER and scroll the main menu to SYSTEM SETUP.
Step 2 Press ENTER and scroll the sub-menu to AUTO UPGRADE.
Step 3 Press ENTER and scroll the menu. With RESTORE displayed, press ENTER to restore to
the previous software version.
Step 4 If the new software version is downloaded successfully, press any button to
exit.
5-3Upgrading Your InterPhone
n Restoring Original Version