entifying External Components
Parts of the Phone
HOOK SWITCH: Switches the phone off/on hook.
LCD Screen: Presents on-line messages and configuration settings.
HOLD INDICATOR: On when the HOLD function is in effect.
FUNCTION: Selects configuration menus.
REVIEW UP/DOWN: Move foward and backward through menu items;
move the cursor up and down.
DELETE: Deletes the character to the left of the cursor.