AT&T EL51110 user manual Experience poor sound quality when using the speakerphone

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Appendix

Troubleshooting

I get noise, static, or weak signals even when I’m near the telephone base.

•If you subscribe to high-speed Internet service (DSL - digital subscriber line) through your telephone line, you must install a DSL filter between the telephone line cord and the telephone wall jack (see Telephone base installation on page 4). The filter prevents noise and caller ID problems caused by DSL interference. Please contact your DSL service provider for more information about DSL filters.

•Other electronic products, such as computers, wireless routers, microwave ovens and other cordless telephones can interfere with the performance of your cordless telephone. You may be able to improve the performance of your telephone by installing the telephone base as far away as possible from other electronic devices.

•Do not install this telephone near a microwave oven or on the same electrical outlet. You may experience decreased performance while the microwave oven is operating.

•If your telephone is plugged in with a modem or a surge protector, plug the telephone (or modem/surge protector) into a different location. If this doesn’t solve the problem, relocate your telephone or modem farther apart from one another, or use a different surge protector.

•Move your telephone to a higher location. The telephone will likely have better reception when installed in a high area.

•If the other telephones in your home are having the same problem, the problem is in your wiring or telephone service. Contact your telephone service provider (charges may apply).

I experience poor sound quality when using the speakerphone.

•For increased sound quality while using the speakerphone, place the handset on a flat surface with the dial pad facing up.

•When using a speakerphone, controlling background noise in your environment is essential. While you are listening to your party, press MUTE to temporarily turn your microphone off. When it is your turn to speak, remember to press MUTE again to turn the microphone on.

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Contents User’s manual Congratulations Parts checklist Table of contents Caller ID AppendixAvoid placing the telephone base too close to Quick reference guide Handset Locator Using menusMain menu Telephone base installation Important InformationCharge light Battery installation and chargingBattery installation Battery charging Place in ChargerWall mount installation Tabletop to wall mount installationDSL filter Wall mount to tabletop installation Menu overview Menu structurePress MENU/SELECT to select Ringer Volume Handset settingsRinger volume Ringer toneClear voicemail indication Voicemail waiting visual message waiting indicatorLCD language Key tone Set date/timeDial mode Home area codeOn-hook dialing predialing Making, answering and ending a callMaking a call To make a call To silence the ringer temporarily on that handset onlySpeakerphone Ending a callTo call a number from the redial list RedialTo review numbers in the redial list To delete a number from the redial list To copy a number from the redial list to the directoryTo create a new directory entry on Options while on calls Temporary tone dialing To access the directory while on a callTo access the caller ID history while on a call Chain dialingTo access the redial list while on a call To stop the paging tone Handset locatorTo start the paging tone Exiting the directory Directory overviewDirectory memory capacity Speed dial overviewCreate directory entries To create a new directory entryKey To add a predialed telephone number to the directoryDial To search by name Reviewing the directoryTo review directory entries Reviewing the directory To edit a directory entry Dialing, deleting and editing a directory entryTo delete a directory entry DIR or CID to Speed dial locationsDIR or Directory EmptyTo clear a speed dial location To dial a speed dial numberAbout home area code About caller IDInformation about caller ID with call waiting To view the dialing options onMemory match Caller ID historyHow caller ID history call log works Reasons for missing caller ID information Missed new calls indicatorCaller ID operation To review the caller ID history To view the dialing optionsTo dial a number from the caller ID history To delete all caller ID history entriesSaving a caller ID history entry in the directory Edit NameCaller ID operation Screen icons Screen icons, indicator lights and alert tonesHandset indicator lights NEWUSE light Telephone base indicator lightsHandset alert tones Handset display screen messages Unable to Call Cannot get a dial tone Troubleshooting My telephone doesn’t work at all Cannot dial out My cordless handset isn’t performing normallyBatteries do not hold a charge Charge light is offExperience poor sound quality when using the speakerphone Hear other calls while using my telephone My calls cut in and out while I’m using my cordless handsetMy cordless handset does not ring when I receive a call Icon shows on the display and I don’t know why My telephone does not receive caller ID when on a callMy caller ID isn’t working Common cure for electronic equipment Taking care of your telephone MaintenanceCleaning your telephone Avoid waterEspecially about cordless telephones Important safety informationSafety information Especially about telephone answering systems FCC Part 68 and Acta Industry CanadaFCC Part 68 and Acta FCC Part How long is the limited warranty period? Limited warrantyWhat does this limited warranty cover? How do you get warranty service? Other limitationsLimited warranty Telephone operating range Technical specificationsDect 6.0 digital technology Index Index