AT&T TL74308 Technical specifications, GHz digital spread spectrum frequency hopping technology

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Appeendix K

Technical specifications

	RF frequency band	2400 MHz — 2483.5 MHz
	(handset to telephone	2400 MHz — 2483.5 MHz
	(handset to telephone
	base)

	RF frequency band	5725 MHz — 5850 MHz
	(telephone base to	5725 MHz — 5850 MHz
	(telephone base to
	handset)

	Channels	95

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

	Telephone base voltage	96 — 130 Vrms
	(AC voltage, 60Hz)

	Telephone base voltage	9VDC @600mA
	(AC adapter output)

	Handset voltage	3.2 — 4.7 VDC 550mAh

	Charger voltage	9VDC @200mA
	(AC adapter output)

	Replacement handset	3.6V 600mAH
	battery

	Base batteries	Three AAA alkaline

5.8 GHz digital spread spectrum frequency hopping technology

This technology digitally transmits your voice across multiple channels in both the 5.8GHz and 2.4GHz frequencies to provide enhanced range, ultimate sound clarity and advanced privacy against eavesdropping on your calls, while not interfering with wireless routers.

Telephone operating range

This cordless telephone operates within the maximum power allowed by the Federal Communications Commission (FCC). Even so, this handset and telephone base can communicate over only a certain distance — which can vary with the locations of the telephone base and handset, the weather, and the construction of your home or office.

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Contents Page On purchasing your new AT&T product CongratulationsParts checklist TL74108/TL74208/TL74308 TL74408/TL74258/TL74358 TL74458 Table of contentsAppendix G PHONE/FLASH Quick reference guide handsetQuick reference guide telephone base Volume PressHandset LOCATOR/INTERCOM While phone is idle Disp Dial PressAvoid placing the telephone base too close to Installation preparationAdd new handsets to make your telephone more versatile see Additional handsets optionalBase Check AC Power Backup battery installation and use not includedTelephone base installation Telephone base installationCharger installation This Side UP Handset battery installation & chargingDesktop to wall mount installation Installation optionsInstallation options Wall mount to desktop installation Installation options To attach the belt clip Belt clip & optional headsetTo remove the belt clip On-hook dialing predialing Using a cordless handset Using the telephone baseBasic operation Press Speaker or Disp Dial to dialHandset speakerphone ClearspeakTM dial-in-base speakerphoneAuto off Press Speaker or Disp Dial to dial the displayed number Last number redialPress Handset LOCATOR/INTERCOM on Handset locatorOptions while on calls Volume controlCall waiting To mute the call on a cordless handset MuteTo un-mute the call on a cordless handset To mute the call on the telephone baseCaller ID history Using a cordless handset Directory Using a cordless handsetLast number redial Using a cordless handset Chain dialingTo end the intercom call IntercomUnable to Call TRY Again PHONE/FLASH, or INT Call transfer using intercomCall transfer using intercom Handset settings Ringer tone Ringer volumeLanguage Key toneTo clear voicemail indication Visual message waiting voicemail indicatorTemporary ring silencing Telephone base settings Ringer Volume Ringer Tone KEY Tone Language CLR Voice Mail Shared directory DirectoryMemory capacity Exiting the directoryPress MENU/SELECT New directory entriesEnter Name Directory Call LOG Enter Name Directory review To review directory entries Using a cordless handsetTo search by name Directory searchTo dial, delete or edit entries To edit an entry Using a cordless handsetDisplay dial Edit Name Press MENU/SELECT. You will be prompted toInformation about caller ID with call waiting Caller ID operationHandset screen display How the caller ID history worksScreen display of the telephone base Memory match Missed calls indicatorCaller ID history To review caller ID history Using a cordless handsetTo dial from caller ID history Using a cordless handset Other options Answering system and voicemail About the answering systemVoice prompts To check day & time Day & time announcementTo set day & time Call screening at the telephone base Answering system modeCall intercept To play your current outgoing announcement Outgoing announcementsTo record a new outgoing announcement To delete your outgoing announcement Answering system setup Number of rings Call screening Remote access codeTemporarily turning off the message alert tone Message alert toneOptions during playback Message playbackTo delete all old messages To play back a memo Recording & playing memosMessage counter displays Message counter displaysRemote commands Remote accessRemote access Screen icons & alert tones Screen icons & alert tonesHandset alert tones Screen iconsIndicator lights Indicator lightsLighted display Lighted keypad Screen display messages Telephone base and handset display screen messagesUnable to Call To register a handset to your telephone base Adding and registering handsetsYou may need to de-register your handsets if Replacing a handsetCleaning your telephone MaintenanceTaking care of your telephone Avoid waterImportant safety information Especially about cordless telephones Especially about telephones answering systems Precautions for users of implanted cardiac pacemakersFCC Part 68 and Acta Industry Canada FCC Part Limited warranty Limited warranty Limited warranty GHz digital spread spectrum frequency hopping technology Technical specificationsTelephone operating range Troubleshooting If you are on a call during an AC power failure, using Please refer to the Battery installation and charging This Troubleshooting guideTroubleshooting Troubleshooting Troubleshooting Day not set System does not respond to remote commands Index Index Action Remote command Remote access wallet card