How do you turn off the ringer on an ATT phone.

If you mean the AT&T 993 two-line speakerphone, you can adjust the ringer volume for each line when the phone is not in use. To increase the ringer volume on the primary line (if set), press the Volume Up arrow. To decrease the ringer volume, press the down arrow. There are 8 different volume levels available for the ringer. The Volume Up/Down buttons are below the * and 0 keys.

To adjust the ringer volume on the secondary line, press that line button (between the Conference and Hold buttons) and then press the Volume Up or Down buttons as needed. (If you haven't programmed a primary line, press a Line button and adjust that line's ring volume before pressing the other Line button. Then adjust the volume for that Line.)

I hope this helps. These directions are shown on page 32 of the manual. AT&T currently has the manual here : https://att.vtp-media.com/ecp/documents/product_Product/227/UserManual/5596/993_manual_i14.pdf . To find this manual or other AT&T phone manuals, start here: https://telephones.att.com/product-support/manuals .

Cindy Wells

is it on silent or night mode?

Make sure to look on the phone itself, and see if there might be a button on the unit, or base station, that turns the ringer on/off.

VOLUME buttons;

During a call, press to adjust the listening volume.

While the telephone is not in use, press to adjust ringer volume.

Press the VOLUME up or down button while the phone is idle to adjust the volume. There are seven volume levels and volume off. Each button press will increment the volume level up or down by one level. The screen will show the volume level while you are adjusting it.

press the # button for few seconds

Since you declined to specify the model of your Uniden DECT 6.0 phone I can only suggest that you select it from the list beginning here to download a copy of the manual.

the best advice would to take it back to the mobile store and have them check it or replaced it for you.

what you should do is just change the phone, take it ack and have them give you other model instead of the V3m.