Caller ID is a phone service that displays the name and number of the caller to your phone. If you have a phone with a display screen that supports caller ID, and AT&T phone service, you can set it up over the phone. This can be done in a matter of minutes and you will be charged a monthly fee for the service.
Contact an AT&T customer service representative by calling 1-800-331-0500. You will be put in touch with an automated system.
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Select the option to speak with a customer service representative.
Ask about adding caller ID to your home phone. AT&T offers plans that come with multiple features, such as three-way calling, and it may be more beneficial to add a whole plan with various features, including caller ID, than simply adding caller ID.
Select the plan or the caller ID option and confirm the purchase. Caller ID will be added and you will be charged a monthly fee for the feature.