How to unmute sound

Page 29 and 59 of the manual refers.
Page 23 Point 16 is probably the reason. The Ringer Volume is at Zero.

https://cdn-web.vtp-media.com/products/CS/CS5249/CS5249-X_WEBCIB_V2_210710.pdf

a neat trick is to press CTRL+F on your computer and type 'ringer' and press Enter. There are 47 mentions of it.

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Typically there is a button that looks much like the mute/unmute button on your T.V. remote. It should look like a megaphone (speaker) and have a line going through it. it also may or may not say MUTE. However in this case I would assume your phone does not. =]

Enter the model of your VTech DECT 6.0 phone into the search box at http://www.vtechphones.com/support/general/manuals to download a copy of the manual.

Enter the model of your VTech 5.8GHz phone into the search box at http://www.vtechphones.com/support/general/manuals to download a copy of the manual.

my batterys go dead on my phone very quick .how to delate my messages on my answering machine

Press the softkey below the "Mute" label. See page 39 of this manual.

Sounds like you have your phone on MUTE. If so the word MUTE should be on your screen. It might be in the upper or lower corners of your screen.
To unmute.....while in the TALK mode.....press the soft key on the far right of the menu key. it should look like this -> -> . MUTE should then clear off screen. You can now hang up. Now go back to TALK and call someone and see if that corrects your problem. Happy talking!

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

How do I unmute my VTecH telephone ringer and intercom?

Hi Melissa,

I reviewed the manual and do not see a mute key. However, I included a link to the manual below for you. Many cordless do not have a mute key, so I merely put my finger over the transmitter holes to mute. Kinda goofy, but it works. Thanks, CG

http://www.uniden.com/pdf/DXAI5188-2om.pdf