Caller ID

About caller ID

This product supports caller ID services offered by most telephone service providers. Caller ID allows you to see the name, number, date and time of calls. The available caller ID information will appear after the first or second ring.

Information about caller ID with call waiting

Caller ID with call waiting lets you see the name and telephone number of the caller before answering the call, even while on another call.

It may be necessary to change your telephone service to use this feature. Contact your telephone service provider if:

You have both caller ID and call waiting, but as separate services (you may need to combine these services).

You have only caller ID service, or only call waiting service.

You don’t subscribe to caller ID or call waiting services.

There are fees for caller ID services. In addition, services may not be available in all areas.

This product can provide information only if both you and the caller are in areas offering caller ID service and if both telephone service providers use compatible equipment. The time and date, along with the call information, are from the telephone service provider.

Caller ID information may not be available for every incoming call. Callers may intentionally block their names and/or telephone numbers. You can only view and store a maximum of 15 digits or characters of every caller ID log entry.

NOTE: You can use this product with regular caller ID service, or you can use this product’s other features without subscribing to caller ID or combined caller ID with call waiting service.

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AT&T CL4940 user manual About caller ID, Information about caller ID with call waiting