At&t 5840 cordless handset troubleshooting

If the message light on the Telstra cordless handset 1 is flashing, indicating a new message, but the message light on handset 2 does not flash even when it's on the cradle, there are a few troubleshooting steps you can try:

1. Check message notification settings: Make sure that the message notification settings on both handsets are properly configured. Refer to the user manual or the settings menu on the handsets to adjust the message notification settings. Ensure that the notification is enabled for both handsets.
2. Reset the handsets: Try resetting both handsets to their default settings. This can be done by removing the batteries from the handsets, unplugging the base station, and leaving them disconnected for a few minutes. Then, reinsert the batteries and plug in the base station. Allow the handsets to reconnect to the base and check if the message light on both handsets functions properly.
3. Check the base station: Ensure that the base station is functioning correctly. Check if the base station is properly connected to the telephone line and power source. If possible, try connecting handset 2 to the base station that handset 1 is connected to and see if the message light functions on that base station. This will help determine if the issue is with the base station or the handset itself.
4. Contact Telstra support: If the issue persists after trying the above steps, it may be best to contact Telstra support directly for further assistance. They will have specific knowledge of their product and can provide more detailed troubleshooting steps or advise on any potential repairs or replacements that may be necessary.

Remember to refer to the user manual for your specific Telstra cordless model for more detailed instructions on troubleshooting and operating the handset.

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Panasonic KX-TGA650B ' Installation Manual - Page 3

General - Product Troubleshooting - VTech® Cordless Phones

www.vtechphones.com/support/.../35/178

VTech Communications Inc.Step 1: Place the handset in the base or charger. If PRESS FIND HS 4 SEC ON BASE does not appear on the screen after a few seconds, lift up handset and recradle it in the base or charger. Step 2: On the telephone base, press and hold FIND HANDSET for approximately four seconds.

Product Registration - VTech® Cordless Phones

https://www.vtechphones.com/.../product-re...

VTech Communications Inc.Vtech DECT 6.0 cordless phones are among the most advanced and innovative homephones on the ... Product Registration. How do I register my product?

vtech cordless handset, how to register - YouTube

? 3:21
https://www.youtube.com/watch?v=dV9rZ_cYcks
Feb 22, 2015 - Uploaded by Brian Williams
i registered my handset but im not able to call and answer call from my ... you lose your phone you have to de register allphones and start over.

The process is called "Registering."

From another fixya post:

1. Make sure to charge the handset battery pack at least 12 hours.
2. Using the soft keys on the base located below the base screen, press MENU.
3. Use the up or down arrow keys to select DISPLAY BASE ID.
4. Press OK. The base screen will display the 15-digit Base ID
code for about 30 seconds, then the unit returns to the idle
screen. Write down the Base ID code on a piece of paper.
5. At the cordless handset, use the soft key to select NEW.
6. Enter the 15-digit Base ID code using the number keypad.
7. Use the soft key to select OK. The screen displays PLEASE
WAIT!.
8. After about 45 seconds, the screen displays FOUND BASE. If the handset displays BASE BUSY TRY LATER, the base is in
use.

yo fix it

here are some tips from my manual for out of range problems
hope they help
• Only one handset can be used to make or answer a call anytime.
If another handset attempt to do so, the screen will display OTHER
HANDSET ON and then OR OUT OF RANGE. You might press PHONE
or SPEAKER again until no other handset is using the line. Use the call
transfer feature to transfer a call to another system handset
or use the speakerphone feature so multiple members of your
house can be on an active call at the same time.
• Move the cordless handset closer to the base. You might have moved
out of range.
• Ensure that the base is powered up.
• Place the cordless handset in base cradle for 1 minute to allow the
cordless handset and base to resynchronize channels.
• If the cordless handset is in its base and the charging light does not
come on, refer to the charge light is off in troubleshooting guide.
• Reset the base. Unplug the unit’s electrical power. Wait for 15 seconds
then plug it back in. Allow up to one minute for the cordless handset
and base to reset.
• Other electronic products can cause interference with your cordless
phone. Try installing your phone as far away from these types of elec
tronic devices as possible: wireless routers, radios, radio towers, page
towers, cell phones, intercoms, room monitors, televisions, personal
computers, kitchen appliances and cordless phones.

Another tip is to remove the battery from the handset for at least 5 seconds. You might want to get a voltage meter and check the voltage on that new battery - maybe it isn't charging properly.

I read the manual and it does not appear that you can put and other DXAI-3288 with you set but, you can always add an other cordless phone to you system.

Here is the customer hotline number 1-800-297-1023

Here is the url for the manual
http://www.uniden.com/pdf/DXAI3288-2om.pdf

You have to have a pdf file reader you can get it at
http://get.adobe.com/reader/

you need to reset the security code between the base and the handset

With a little searching I was not able to confirm this phone could handle more than one cordless handset. Are you replacing a defective handset or trying to add a second. If adding, do you know if it can handle the second unit (is it advertised on the box, in the user guide, etc?) If replacing, you most likely have to de-register the old handset on the base unit before you can register a new one. If you are adding, try de-registering the working handset anyway and registering the new one. If the new one registers and you cannot re-register the once working phone you will know either the system cannot handle two phones or (if the new one will not register but you can again re-register the original) that the new handset has a problem and should be returned.