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:

The handset displays UNABLE TO CALL TRY AGAIN. Why can’t I place a call?

Solution:

Tip 1 of 2

Are you attempting to use more than two handsets on the same call? Your system allows you to use two handsets at a time. You can also forward and transfer calls from one handset to another. See your User’s Manual for details.

Next Tip This solved my problem