Technical specifications | AT&T CL4939 specification

Appendix

Technical specifications

Operating temperature	32°F — 122°F
	0°C — 50°C

Power adapter input	AC120V 60Hz

Power adapter output	AC6V 350mA

REN	0.7B

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AT&T CL4939 user manual Technical specifications

Contents

User’s manual On purchasing your new AT&T product Canada, dial 1 866 Parts checklist Stop Avoid placing the telephone base too close to Table of contents Remote access wallet card Introduction Quick reference guide Remove Speaker Indicator lights and tones Indicator lightsAlert tones Screen messages Screen iconsMessage window displays Display screen messages Deleted Telephone installation 800 222-3111. In Canada, dial 1 866 Installation options Tabletop to wall-mount installation Installation options Wall-mount to tabletop installation Wall-mount Tabletop position Position Installation options Volume control Ringer volumeHandset volume Speakerphone volume Menu setup Set featuresFeature summary Menu operation Local Area # of Rings Set date and time Press Select to show MM/DD/YYYY Set home area code Set local area code Menu setup Making and answering a call Chain dialing From the directoryFrom a two-touch memory location From the call history Press Display Dial or Speaker to call using the speakerphone Last number redial Options while on calls Audio assistMute To mute the call Flash/call waiting Temporary tone dialing Line 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 failure Two-touch memory overview and storage Two-touch memory overviewTwo-touch memory storage Reviewing and dialing a two-touch number To review two-touch numbersTo dial a two-touch number Deleting a two-touch number To delete a two-touch number Character chart Directory overviewDirectory memory capacity Directory storage Remove Reviewing and dialing a directory entry To review directory entriesTo dial a directory number Deleting a directory entry Caller ID overview About caller IDAbout home area code and local area codes How caller ID works Caller ID special messages Memory matchHow call history works Reviewing call history Unreviewed and total callsTo review call history 7227702 Returning a call Storing a call history entry in the directory Storing a call history entry in a two- touch location Deleting call history entries To delete a call history entryTo delete all call history entries Message guard memory for power failure Answering system overviewMessage capacity Voice prompts Answering mode To turn on the answering systemTo turn off the answering system Outgoing announcement To record your outgoing announcement To play the outgoing announcement To delete your outgoing announcement Message playback To play back messagesInformation about messages Options during message playback To delete all old messages Recording and playing memo To record a memoTo play back memos Call screening, priority call and call intercept Call intercept Remote access To access your answering systemRemote commands 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 on On the answering system on page 43. When If you choose tS 2-4 or tS 4-6 in # of Rings Troubleshooting Troubleshooting General product care Important safety information Especially about corded telephones FCC and Acta information Product identifier and REN information Programming/testing of emergency numbers Part 15 of FCC rules Limited warranty 866 How do you get warranty service? Technical specifications Index Index Remote access wallet card Action Remote command