No volume on handset up stairs only sound on main wall set downstairs

Uniden has the manual for the EXAI2980 here: https://www.uniden.com/File%20Library/FooterNav/Product%20Information/Owners%20Manuals/exai2980om.pdf .

Do you need to adjust the ringer volume of the base, the handsets or both? To set the ringer volume of the base, start with the phone in standby mode (no calls being made or received) then press Menu 4 times (the right-hand button in the row above the volume up/down buttons). You should hear the current ring volume and see it displayed on the LCD screen. Press Set (the left-hand button in the row above the volume buttons). Press Skip/FF or Repeat/RR (the buttons on either side of the Play button below the LCD screen) until the desired ring volume level is displayed. Press Set to save the setting. Press Play/Stop to exit the menu system. See page 38 of the manual (page 40 of the PDF above) for the directions.

To adjust the handset ringer volume, press the handset volume up or down buttons with the phone in standby. The last chosen ringer tone and volume will be saved. See page 16 (page 18 of the PDF). Sometimes, the handset will not ring after losing the security code that pairs it to the base. Remove the handset from the base. Press and hold Page on the base (between Set and Menu). While the handset is sounding the paging tone, replace the handset in the base. Leave the handset in the base until the flashing stops (more than 5 seconds). See page 47 of the manual.

I hope this helps.

Cindy Wells

There are different ways to adjust the ringer and speaker volume on your handset. Please see your owners manual for model specific instructions.
On most single handset units:
Ringer volume: Press the volume up or down arrow rapidly to change the ringer volume.
Speaker volume: When talking on the handset press the volume up and down arrow to increase or decrease the volume.
On other models:
Ringer volume
In standby mode, press the volume up key or volume
down key on the handset or base to select one of three
ringer volume (Off, Low, or High).

Earpiece and Speaker Volume
You can select from among of six volume levels on the
handset, and ten levels on the base. Pressing the
volume up key or volume down key on the handset or
base during a call will change the earpiece or speaker
volume. This setting will remain in effect after the
telephone call has ended.
If you press the volume up key when the earpiece is at
the maximum volume level, an error tone sounds.
The error tone also sounds if you press the volume down key at the lowest volume.
Sergio

Just set the ringing volume to off.
You can choose from four ringer volume settings (off, low, medium, and high) separately on each handset or the base.
With the phone in standby, press or on the handset or VOLUME or VOLUME on the base. The handset or base sounds the ringer at that level. Use on the handset or VOLUME on the base to make the ringer volume louder. Use on the handset or VOLUME on the base to make it softer or turn it completely off.
Note: If you set the ringer volume to Off, the handset or base won't ring. Other handsets or base will ring according to their individual settings

See if this helps

Adjusting the Ringer, Earpiece and Speaker Volume

Adjusting the Ringer Volume

You can choose from four ringer volume settings (off, low, medium, and high)

separately on each handset or the base.

With the phone in standby, press or on the handset or VOLUME or

VOLUME on the base. The handset or base sounds the ringer at that level.

Use on the handset or VOLUME on the base to make the ringer volume

louder. Use on the handset or VOLUME on the base to make it softer or

turn it completely off.

When you hear the ringer volume level you want to use, stop pressing keys.

The handset or base will use the new ringer volume starting with the next incoming call.

Note: If you set the ringer volume to Off, the handset or base won't ring. Other handsets or base will ring according
to their individual settings.

Adjusting the Ringer, Earpiece and Speaker Volume

Adjusting the Ringer Volume

You can choose from four ringer volume settings (off, low, medium, and high) separately on each handset or the base.

With the phone in standby, press or on the handset or VOLUME or VOLUME on the base. The handset or base sounds the ringer at that level.

Use on the handset or VOLUME on the base to make the ringer volume louder. Use on the handset or VOLUME on the base to make it softer or turn it completely off.

When you hear the ringer volume level you want to use, stop pressing keys.

The handset or base will use the new ringer volume starting with the next incoming call.

Note: If you set the ringer volume to Off, the handset or base won't ring. Other handsets or base will ring according

to their individual settings.

Muting the Ringer (One call only)
While the phone is ringing, press /Mute or END on the handset or on the base to mute the ringer

Hi, you can try to change the profile settings of the phone, because sometimes even if the volume is full but if the profile settings is on low, the sound will still be low.
Thank you for using Fixya.

To adjust the ringer volume:

1. With the phone in standby, press ^ or v. The display shows the current volume level and the handset sounds the ringer at that level.
2. Use ^ to make the ringer volume louder or use v to make it softer or turn it off completely.
3. When you hear the ringer volume level you want to use, stop pressing keys. The handset will use the new ringer volume starting with the next incoming call.

Note: If you set the ringer volume to Off, the handset won't ring. If you have any accessory handsets, other handsets will ring according to their individual settings.

To adjust the earpiece volume:

You can choose from six volume levels for the handset earpiece. To adjust the earpiece volume while on a call, press ^ to make it louder or v to make it softer. The handset display shows the current volume level for the earpiece.

To adjust the speaker volume:

You can choose from six volume levels for the handset speaker while on a speakerphone call. To adjust the handset speaker volume, press ^ to make it louder or v to make it softer. The handset display shows the current volume level for the handset speaker.

Note: The handset earpiece and the handset speaker have separate volume settings.

Adjusting the Ringer Volume (From the Uniden manual)

You can choose from four ringer volume settings (off, low, medium, and high) separately on each handset or the base.

1. With the phone in standby, press ArrowUp or Arrow Down on the handset or VOLUME + or VOLUME - on the base. The handset or base sounds the ringer at that level.
2. Use Arrow Up on the handset or VOLUME + on the base to make the ringer volume louder.
   
3. Use Arrow Down on the handset or VOLUME - on the base to make it softer or turn it completely off.
4. When you hear the ringer volume level you want to use, stop pressing keys.
   
5. The handset or base will use the new ringer volume starting with the next incoming call.
6. If you set the ringer volume to Off, the handset or base won’t ring.
   
7. Other handsets or base will ring according to their individual settings.

In an increasingly hands-free world, the external speaker feature of cell phones has increased the usability of cell phones in the car, public transportation and at work. The volume controls on the external speaker controls can be somewhat difficult to find and manipulate.

1. Step 1 Make sure the speaker setting is actually on. If the speaker is turned to off, the volume you hear will be coming from the earpiece and will be very low indeed. Sometimes there is a button on a cellphone which you can simply press and hold to activate the speaker function. You will notice a difference immediately.
   
2. Step 2 Check to see if you have external volume controls. On some models, there is a button or two buttons that adjust the volume of both the handset and the speaker volume. If you have these buttons, use them to adjust these controls while on calls. Remember that adjusting the speaker volume will subsequently adjust the handset volume once you've turned off the speaker mode.
   
3. Step 3 Access the sound controls in your phone. If your phone does not have external speaker control, it can be accessed by adjusting the controls saved on your phone. Also, the main settings can be controlled even if you do have external controls. Phones are different, but in your menu of options, choose sound and sound controls. This should give you options for ring volume, alarm volume and handset volume.
   
4. Step 4 FInd volume controls for all settings. If you wish yo have multiple settings for each function---alarm, calls and speaker---you should be able to adjust these accordingly. Search through the control options until you've found speaker controls. Choose the setting you desire and save the settings.
   
5. Step 5 Using the main volume as a foundation, use the external controls (if applicable) to adjust the levels.
   

Try Ths on the handset Be sure the TALK indicator is off.Press LOUD/RINGER button on the handset, the curreent ringerwill sound. To change the Volume press the LOUD/RINGERagain within 5 secs , and the new ringer will sound, you must press LOUD/RINGER within 5 secs or the volume will not change.