Frequently asked questions (FAQs)

Welcome to the AT&T product support center. To get started: select a product category from the left, or enter your model number below to go straight to support and troubleshooting for that product.

Product Troubleshooting

Problem:

I am not receiving a dial tone on one line. How can I fix this?

Solution:

Tip 1 of 7

Confirm correct installation of the telephone lines. Consult the Installation section of your User’s Manual for connection options.

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Note:


You may want to reference your product manual.