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AT&T 2820 manual LOW Battery Warning, Connecting Phone Line, Full Empty

Models: 2820

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LOW BATTERY WARNING

The battery icon indicates the battery status:
FULL	EMPTY

When the battery is low, there will be an audible signal and ‘LOW BATTERY’ will appear on the screen.

Removing and replacing handset battery pack

After years of use, all NiMH rechargeable batteries loose the ability to hold a full charge and may need to be replaced. The handset uses 1 NiMH 650 mAh 3.6V (AAA) rechargeable battery pack. Only replace with an approved ID-2820 battery pack available through AT&T. Contact the AT&T Customer Service Center at 800-667-2118 to order.

WARNING: There is a risk of explosion if the battery pack is replaced with an incorrect battery pack type. Dispose of the used battery pack according to your local waste management guidelines.

To install a replacement handset battery pack:

1.Remove the battery door cover on the telephone handset.

2.Insert the battery pack as shown.

3.Slide the cover back on so that it clicks ﬁrmly into place.

NOTE: Before using the handset and to prolong battery life, place the handset in the base handset cradle and charge for at least 15 hours.

CONNECTING PHONE LINE

Plug one end of the modular phone cord (provided) into the telephone wall jack. Plug the other end of the cord into the back of the base unit.

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AT&T 2820 manual LOW Battery Warning, Connecting Phone Line, Full Empty

Contents

Page Contents Voice Mail Main Features IntroductionPackage Contents Product Overview Handset with Touch Sensitive KeypadBase Unit LCD Display SymbolsSymbol Description Touch Phone USE and HandlingConnecting Base Unit AC Adapter Getting StartedActivating and Charging the Handset Battery Pack Handset Battery PackTo activate and charge the handset battery pack Connecting Phone Line LOW Battery WarningFull Empty Attaching the Belt Clip Basic FunctionsMaking and Receiving Calls To end a call To adjust volume during callTo activate speakerphone during a call To redial a callStoring Phonebook Record Standby Mode and Sleep ModePhonebook To input namesTo delete 1 record Deleting Phonebook RecordTo delete all records Editing Records Calling Stored NumbersTo view the call log Caller ID DisplayViewing and Calling Caller ID Records To dial the reviewed numberFormatting Caller ID Numbers Saving Caller ID Records to PhonebookDeleting Caller ID Record Deleting ALL Caller ID RecordsMissed Calls Programming Voice Mail Access NumberVoice Mail To program your voice mail numberTo call your pre-programmed voice mail number To manually clear the message waiting indicatorMessage Waiting To edit your voice mail numberUsing Handset Keys to Enter Text Handset SettingsKEY UPPER-CASE Letters LOWER-CASE Letters Navigate Handset Menus How to navigate menusKEY Function List of submenus English Francais EspanolChange Display Settings Change Ring and KEY TonesAssigning a Name to a Handset To adjust ring toneTo adjust key tone Handset ReceptionSetting Default Value ResetDefault Settings MM / DDSmart KEY Lock Handset Special FeaturesPhone Setup To select between pulse and tone dial modesTo activate / deactivate manual Key Lock Clock and Alarm SettingsAuto Answer To set the timePaging the Handset To set the alarmTo change time display format Handset Registration MULTI-HANDSET OperationHeadset To register a new handsetUsing the Intercom Function To transfer a call to another handsetRoom Monitor To listen to the room monitor handset OUT of Range TroubleshootingProblem Possible Causes / Remedies RegisteredSettings Change Ring and KEY Safety Information Page Battery Safety Precautions Rechargeable Nickel-Metal-Hydride Battery WarningCare and Maintenance Caring for Your ProductType Description SpecificationsGfsk Declaration of Conformity FCC StatementConsumer Information Page Limited Warranty Page HOW Long is the Warranty PERIOD? Procedure for Warranty RepairWhat does the Warranty COVER? HOW do I Send MY UNIT, in or OUT of WARRANTY?What is not Covered Under the WARRANTY?