AT&T CL4939 user manual Line power mode no AC power, To make a call during a power failure

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Telephone operation

Line power mode (no AC power)

This telephone provides minimal functionality during a power failure. When AC power is not available, the screen is blank and many telephone features do not function. Only touch-tone dialing and volume adjustment (ringer volume and handset volume) are supported. The telephone uses power from the telephone line to enable you to make and answer calls using only the handset and dial pad keys.

To make a call during a power failure

1.Lift the handset and wait for the dial tone. The screen shows NO AC POWER.

2.Slowly dial a telephone number using the dial pad keys. Wait to hear each key tone and make sure the digit appears on the screen before pressing the next dial pad key.

NOTE: If the telephone is not powered by the supplied power adapter, there is a delay when dialing digits.

To answer a call during a power failure

• Lift the handset.

NOTE: The screen does not show incoming caller ID information during a power failure.

To adjust the handset volume during a power failure

Use the VOL switch on the right side of the telephone base to adjust the listening volume from the handset.

To adjust the ringer volume during a power failure

Adjust the RINGER VOL switch on the right side of the telephone base to set the ringer volume to off, low, middle or high.

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Contents User’s manual On purchasing your new AT&T product Canada, dial 1 866Parts checklist Stop Avoid placing the telephone base too close toTable of contents Remote access wallet card Introduction Quick reference guide RemoveSpeaker Alert tones Indicator lights and tonesIndicator lights Message window displays Screen messagesScreen icons Display screen messages DeletedTelephone installation 800 222-3111. In Canada, dial 1 866 Installation options Tabletop to wall-mount installationInstallation options Wall-mount to tabletop installation Wall-mount Tabletop position Position Installation options Volume control Ringer volumeHandset volume Speakerphone volumeMenu setup Set featuresFeature summary Menu operationLocal Area # of Rings Set date and time Press Select to show MM/DD/YYYYSet home area code Set local area codeMenu setup Making and answering a call Chain dialing From the directoryFrom a two-touch memory location From the call historyPress Display Dial or Speaker to call using the speakerphone Last number redialOptions while on calls Audio assistMute To mute the callFlash/call waiting Temporary tone dialingLine power mode no AC power To make a call during a power failureTo answer a call during a power failure To adjust the handset volume during a power failureTwo-touch memory storage Two-touch memory overview and storageTwo-touch memory overview To dial a two-touch number Reviewing and dialing a two-touch numberTo review two-touch numbers Deleting a two-touch number To delete a two-touch numberDirectory memory capacity Character chartDirectory overview Directory storage RemoveTo dial a directory number Reviewing and dialing a directory entryTo review directory entries Deleting a directory entry About home area code and local area codes Caller ID overviewAbout caller ID How caller ID works How call history works Caller ID special messagesMemory match To review call history Reviewing call historyUnreviewed and total calls 7227702 Returning a callStoring a call history entry in the directory Storing a call history entry in a two- touch location To delete all call history entries Deleting call history entriesTo delete a call history entry Message guard memory for power failure Answering system overviewMessage capacity Voice promptsTo turn off the answering system Answering modeTo turn on the answering system Outgoing announcement To record your outgoing announcementTo play the outgoing announcement To delete your outgoing announcementMessage playback To play back messagesInformation about messages Options during message playbackTo delete all old messages To play back memos Recording and playing memoTo record a memo Call screening, priority call and call intercept Call interceptRemote commands Remote accessTo access your answering system Received to repeat the message Troubleshooting Troubleshooting Troubleshooting Feature summary on If you select NEW Call First in Call List OrderSet local area code on Electronic equipment onOn the answering system on page 43. When If you choose tS 2-4 or tS 4-6 in # of RingsTroubleshooting Troubleshooting General product care Important safety information Especially about corded telephonesFCC and Acta information Product identifier and REN informationProgramming/testing of emergency numbers Part 15 of FCC rules Limited warranty 866How do you get warranty service? Technical specifications Index Index Remote access wallet card Action Remote command