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.

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AT&T 7720 user manual Base Unit BACK-UP Batteries, Replacing the Base Power Reserve Batteries

Contents

User’s Manual for Digital Answering System Philips Consumer Communications L.P. All rights reserved Table of Contents Table of Contents Handset Batteries Installation Installation Table/Desk Installation Install the handset batterySet the handset Ringer switch Connect the telephone line cord Install the power reserve batteries Connect the power cord Set the dial modeCheck for a dial tone Wall Installation Follow Steps 7 to 12 in Table/Desk Installation Telephone Operation Redial FlashVoice Security Temporary Tone Hold Answering a call while using the intercomPage/Intercom Paging someone at the base from the handset Recording a Phone Conversation Power Reserve Feature Caller ID About Caller IdentificationCall Waiting Caller ID SET UP Programming Local Area CodesTo program your local area codes Call List Options Turn Off Caller ID with Call Waiting New Call Indicator Caller ID FeaturesCall Announce Recording Call Announcements Reviewing and Deleting Call Announcements Incoming Call HistoryReviewing Call History Removing Call Records from History Display DialRemoving All Call Records Caller ID Display Messages Telephone Memory Memory Guard FeatureStoring Numbers in Memory Storing a Pause in a Memory Number Memory Match Storing a Name with a NumberViewing Numbers in Memory Dialing Memory Numbers Replacing a Stored Number Storing a Number Just Dialed in Telephone MemoryPriority Ring Numbers Storing a Number from Call History in Telephone Memory To locate the handset using this feature, press and hold Speakerphone Volume ControlMute Handset Locator Changing Channels Operating Range Setting the Clock Speaker Volume ControlAnswering System SET-UP Turning the System On/Off General Announcements Announcement OptionsSelecting Your General Announcement For example Recording Your General Announcement Deleting Your General AnnouncementCaller Specific Announcements Outgoing Setting Up Caller Specific Outgoing Announcements Announcement Play/Silent Feature Set-Up Remote Access Code Ring Select and Toll SaverAudible Message Alert Base Ringer Setting Priority Call SignalReviewing Feature Settings Changing the Priority Calling Code Answering Calls Answering System OperationCall Screening/Intercept Announcement Bypass Listening to Your Messages Deleting Messages Saving MessagesDelete all messages in a mailbox Delete selected messages Recording a Memo Message Guard Power Fail Protection System Voice Help Menu Connecting with the Answering SystemFrom the Cordless Handset From a Touch Tone Phone Remote Access Commands Playing messagesConnect with the answering system Changing Outgoing Announcement Call ScreeningReviewing Your Announcement To monitor a call Remote On/Off Recording a Message When System is OffReview ON/OFF Status Turning System Off Changing Settings Reviewing SettingsExit Remote Access Charging the Handset Battery Pack Replacing the Handset Battery PackHandset Batteries Base Unit BACK-UP Batteries Replacing the Base Power Reserve Batteries Audible Signals Signals and Displays If the phone does not work at all, check these items first Case of Difficulty If the phone does not ring when you receive a call If you hear noise or interference when using the phoneIf you hear other calls while using the phone If you have no dial tone If speakerphone conversation sounds distorted If you hear noise in the handset and the buttons don’t workIf messages are incomplete If you have difficulty hearing messages Display Dial feature does not work If your outgoing announcement isn’t clearCaller’s name or phone number is not displayed Memory Match feature does not work Cordless Digital Answering System Speakerphone End of messages