Power Fail Operation, Spare Battery | AT&T 2440 specification

BATTERIES

Power Fail Operation

You can use your cordless phone during a power outage when a fully charged battery is installed in the base unit (see “Spare Battery”). This battery will provide enough power for you to make and receive calls for up to five hours.

NOTE: When using the spare battery backup power, audio quality may be somewhat reduced.

Spare Battery

This phone is equipped with a built-in spare battery charger in the base unit. The spare battery charger allows you to always have a charged battery available should the handset battery charge become low.

NOTE: Do not switch the battery while on a call.

1Press the release button on the bottom of the base unit to open the spare battery compartment drawer.

2Place the battery pack (Replacement Battery 240, SKU# 91077, purchased separately) in the drawer, with the charge contacts facing up and to the left.

3Push the drawer closed.

4The spare battery takes 24 hours to fully charge.

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AT&T 2440 user manual Power Fail Operation, Spare Battery

Contents

With Caller ID/Call Waiting Advanced American Telephones. All rights reserved Contents About Caller ID with Call Waiting Using More Than One HandsetBefore YOU Begin Choosing the Best Location Install the handset battery Installation Headset Belt Clip Feature Settings Telephone Feature Setup-HandsetHandset Softkeys Handset Features Base Features Telephone Feature Setup-Base Redial Answer a CallMake a Call Flash Call Waiting Hold VolumeTelephone Operation Mute Handset Icons Flash/Call Waiting Volume Telephone Operation Store a Number and Name in Memory Telephone Directory View a Memory Number Delete a Memory Number Dial a Memory Number Edit a Memory Number Dial a One-Touch Number Telephone MemoryStore a One-Touch Number Delete a One-Touch Number Handset to Handset Base to All HandsetsBase to One Handset Handset to Base Announced Transfer Handset to Base and All HandsetsTransfer Calls Blind Transfer Four-Way Conferencing Display Dial Options Caller ID OperationView Calls Log Dial Displayed Call Record Store Call Record in Telephone Memory Delete Call Records Battery Life Charge the Handset Battery PackBatteries Replace the Handset Battery Pack Spare Battery Power Fail Operation To re-initialize the handset and base Case of DifficultyIf the phone does not work at all, check these items first If you have no dial tone If the caller’s name or phone number is not displayed If you hear noise or interference when using the phoneIf the phone does not ring when you receive a call If your telephone misdials