AT&T ML17939 My caller ID isn’t working, System does not receive caller ID when on a call

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Appendix

Troubleshooting

If you subscribe to high-speed Internet service (DSL - digital subscriber line) through your telephone line(s), you must install a DSL filter between each telephone line cord and telephone wall jack (see Telephone base installation on pages 6-7). The filter prevents noise and caller ID problems caused by DSL interference. Please contact your DSL service provider for more information about DSL filters.

My caller ID isn’t working.

Caller ID is a subscription service. You must subscribe to this service from your telephone service provider for this feature to work on your telephone base.

The caller must be calling from an area that supports caller ID.

Both your and your caller’s telephone service provider must use caller ID compatible equipment.

If you subscribe to high-speed Internet service (DSL - digital subscriber line) through your telephone line(s), you must install a DSL filter between each telephone line cord and telephone wall jack (see Telephone base installation on pages 6-7). The filter prevents noise and caller ID problems resulting from DSL interference. Please contact your DSL service provider for more information about DSL filters.

System does not receive caller ID when on a call.

Make sure you subscribe to caller ID with call waiting features from your telephone service provider. Caller ID feature works only if both you and the caller are in areas offering caller ID service, and if both telephone companies use compatible equipment.

The answering system records incomplete messages.

The recording time of each message depends on the message length you set (see Incoming message length on page 25).

If a caller leaves a very long message, part of it may be lost when the system disconnects the call after three minutes.

If the caller pauses for longer than seven seconds, the system stops recording and disconnects the call.

If the system’s memory becomes full during a message, the system stops recording and disconnects the call.

If the caller’s voice is very soft, the system may stop recording and disconnect the call.

System does not answer after the correct number of rings.

Make sure that the answering system is on (see Answer on/off on page 21).

If toll saver is activated, the number of rings changes to two when you have new messages stored (see Number of rings on page 24).

If the memory is full or the system is off, the system will answer after 10 rings.

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Contents User’s manual Congratulations Parts checklist Table of contents Speed dial Installation preparation Avoid placing the telephone base too close toQuick reference guide DeleteHeadset Optional backup battery installation Telephone installation Telephone base installation800 222-3111.In Canada, dial 1 866 Telephone installation Data port Installation options Tabletop to wall installationL1+L2 If you have DSL high Wall to tabletop installation Switch hook Optional headset Directory cardTo write names on the directory card To change the directory cardMenu structure Telephone settingsMenu overview Ringer volume Ringer melodyLCD language To select English, Français or EspañolLCD backlight Date and timeKey tone Scroll rateCall settings Set the primary lineTurn automatic line selection on or off Turn auto speaker on or offChoose the preferred mode Set home and local area codesChoose how to store repeat calls in the call history Select tone or pulse dialingAnnouncement selection Answering system settingsAnswer on/off To scroll to Mailbox 1 or Mailbox To scroll to Annc a only, Annc B onlyOr a & B schedule Announcement a and BTo scroll to Mailbox 1 or Mailbox 2 to Announcement a and B time settingsTo delete announcement a or B Call screening Number of ringsIncoming message length Remote codePriority code Message alert toneClear voicemail indication Voicemail indicator settingsVoicemail indicator Turn Covm central office voicemail on or off Basic operation To make a call with the handsetTo make a call with the corded headset To answer a callTo switch from the handset to headset To switch from the speakerphone to handsetTo switch from the speakerphone to headset To switch from the headset to speakerphoneRedial To dial one of the five most recently dialed numbersPress Enter or Disp Dial To dial the last number dialedTo cancel auto redial at any time Press Auto Redial To delete a redial entryAuto redial To auto redial a number on the redial listOptions while on calls Switching between lines Temporary tone dialingConference calls To make a three-way conference callTo drop one line To end a conference callTwo-way recording To record a callChain dialing Speed dial memory overview If Auto speaker is turned off see Turn auto speaker Speed dial operationStoring a number in a speed dial location Editing a speed dial number Dialing a speed dial numberDeleting a speed dial number Directory memory capacity Character chartDirectory overview Reviewing directory entries Directory operationCreating a directory entry Searching by name Editing directory entriesCopying directory entries to speed dial memory See Reviewing directory entries onDialing directory entries Deleting directory entriesAbout caller ID Information about caller ID with call waitingHow caller ID history call log works Caller’s number Date of callMissed calls indicator Caller ID operationMemory match Reviewing call historyDelete all call history entries Dialing optionsDialing a call history entry Saving a call history entry to the directory Copy to DIRSaving a call history entry to a speed dial location SpDialPress ENTER. The screen displays Press speed dial KeyReasons for missing caller ID information Screen message ReasonAnswering system and voicemail Answering system operation Message capacityAnswering system new message indication Call interceptWhen a message is playing Message playbackTo listen to messages Options during playbackDelete all old messages Messages?Displays All old messages deleted Press ENTER. The screen displays Delete all old messages?Remote access Screen icons Screen icons, indicator lights and alert tonesIndicator lights Alert tones Screen display messages Entry has been saved successfully into Troubleshooting My telephone does not work at allCannot get a dial tone Cannot dial outMy calls cut in and out while I’m using my corded handset Hear other calls while using my telephoneMy telephone does not ring when I receive a call System does not receive caller ID when on a call My caller ID isn’t workingAnswering system records incomplete messages System does not answer after the correct number of ringsSystem does not respond to remote commands System does not record messagesVoicemail appears and L1 and/or L2 flashes on the display Cannot retrieve voicemail messagesCommon cure for electronic equipment 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 Technical specificationsIndex Index Remote access wallet card Action Remote command

ML17959, ML17939 specifications

The AT&T ML17939 and ML17959 models are two of the latest additions to AT&T's line of reliable and feature-rich corded telephones. Designed primarily for home and small office use, these models incorporate essential features that cater to the modern user's needs while ensuring robustness and ease of use.

One of the main features of the ML17939 and ML17959 is their large, easy-to-read backlit display. This display enhances visibility in various lighting conditions, an important characteristic for users who may have visual impairments or those who prefer a user-friendly interface. The backlight provides convenience, allowing users to easily see who is calling even in dim environments.

Both models offer a 40-number memory capacity, allowing users to store frequently dialed numbers for quick access, which is particularly beneficial in a busy home or office setting. The one-touch speed dial feature streamlines communication, reducing the time it takes to reach important contacts. Additionally, the ML17939 and ML17959 are equipped with a Caller ID function, providing users with instant recognition of incoming calls, further enhancing the user experience.

The phones utilize advanced security technologies, such as DECT (Digital Enhanced Cordless Telecommunications) technology for secure and clear call quality, minimizing interference from other devices. This helps ensure that conversations remain private and crisp, which is essential for both personal and professional calls.

Moreover, these models feature built-in speakerphones that allow for hands-free communication. This function is particularly beneficial for multitasking, enabling users to handle calls while attending to other tasks. The adjustable volume controls also contribute to a personalized user experience, allowing callers to set their preferred audio levels.

In terms of design, both the ML17939 and ML17959 models boast a sleek and modern appearance, fitting seamlessly into any environment. Their compact design is complemented by lightweight construction, making them easy to move and place as needed.

Overall, AT&T's ML17939 and ML17959 models stand out with their blend of functionality, advanced features, and user-friendly design. Ideal for those seeking a reliable and efficient corded telephone solution, these models aptly address the communication needs of contemporary users, making them an excellent choice for both home and office applications.