AT&T 7720 BASE UNIT BACK-UP BATTERIES

BASE UNIT BACK-UP BATTERIES

Replacing the Base Power Reserve Batteries

The base unit back-up batteries need to be replaced when the PWR RESERVE

BATT LOW light on the base flashes when the phone is on.

1Turn the base unit over. (Remove the wall bracket if the phone is

wall-mounted.)

2Open the battery compartment door.

3Remove the old batteries.

4Insert four new AA batteries as indicated by the diagram in the

compartment.

5Close the battery compartment door.

IMPORTANT: Do not install batteries during a power failure. Installing

batteries during a power failure will not enable the phone to work.

When battery power is low, the PWR RESERVE BATT LOW light goes on.

Replace the batteries promptly.

Contents

Main Page TELEPHONE MEMORY.................................................................................21 ANSWERING SYSTEM SET-UP......................................................................26 Page Page Page Table/Desk Installation Page Page Wall Installation 10 Follow Steps 7 to 12 in Table/Desk Installation. About Softkeys Making a Call Answering a Call Ending a Call Handset Volume Flash Redial Voice Security Temporary Tone Hold Page/Intercom Recording a Phone Conversation Power Reserve Feature CALLER ID About Caller Identification Call Waiting 16 CALLER ID SET UP Programming Local Area Codes D CALLER ID SET UP Turn Off Caller ID with Call Waiting Call List Options New Call Indicator Call Announce Recording Call Announcements Reviewing and Deleting Call Announcements Incoming Call History Reviewing Call History 20 Display Dial Removing Call Records from History Removing All Call Records Caller ID Display Messages Memory Guard Feature Storing Numbers in Memory Storing a Pause in a Memory Number Storing a Name with a Number Memory Match Viewing Numbers in Memory Dialing Memory Numbers Page Answering a Call Speakerphone Volume Control Mute Hold Page/Intercom OPERATING RANGE Changing Channels Turning the System On/Off Speaker Volume Control About Mailboxes Setting the Clock Announcement Options General Announcements Selecting Your General Announcement Recording Your General Announcement Deleting Your General Announcement Caller Specific Announcements Setting Up Caller Specific Outgoing Announcements Reviewing and Deleting Caller Specific Outgoing Announcements Announcement Play/Silent Feature Set-Up 31 Ring Select and Toll Saver Audible Message Alert Remote Access Code 32 Priority Call Signal Changing the Priority Calling Code Base Ringer Setting Reviewing Feature Settings Answering Calls Call Screening/Intercept Announcement Bypass Listening to Your Messages Saving Messages Deleting Messages Delete all messages in a mailbox Delete selected messages Replay deleted message Recording a Memo MESSAGE GUARD Power Fail Protection System Connecting with the Answering System From the Cordless Handset From a Touch Tone Phone Voice Help Menu 37 Remote Access Commands Playing messages Deleting Messages 38 Call Screening Changing Outgoing Announcement Reviewing Your Announcement Recording a Phone Conversation 39 AT CORDLESS HANDSET OR TOUCH TONE PHONE) 40 Recording a Memo Setting The Clock Remote On/Off Changing Settings Reviewing Settings Exit Remote Access HANDSET BATTERIES Charging the Handset Battery Pack Replacing the Handset Battery Pack BASE UNIT BACK-UP BATTERIES Replacing the Base Power Reserve Batteries 44 SIGNALS AND DISPLAYS Audible Signals Sound: Meaning: Message Window Displays: When: 45 If the phone does not work at all,check these items first If you hear a two-beep signal when you try to use the handset 46 If you have no dial tone If you hear noise or interference when using the phone If the phone does not ring when you receive a call If you hear other calls while using the phone Page Page Page Cordless Digital Answering System Speakerphone 7720