Vista 390 battery - Aastra Telecom Powertouch/Vista 390 Corded Phone

Ringer is switched off. Pages 6 and 13 of the manual refers

vista-390-user-manual.pdf

SaskTel https://www.sasktel.com > attachments > support PDF Use this user guide to learn more about the Model 390's features. Emergency Service Feature. The Model 390 will provide telephone service during a power failure ...
18 pages

Question edited for clarity.
Question moved to make model category from Computers.

There doesn't appear to be an easy reset method in the manual. Try disconnecting the power adapter for 2 minutes or perhaps overnight. You may need to open it up and disconnect the backup battery to effect a reset. You will lose saved numbers and message.

https://www.google.com/search?q=vista+390+phone+factory+reset

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Vista 390-350 - Go through the options menu on your telephone and select the Clear Msg Wtg Light option.

You have no new messages waiting, but your phone says you

Same phone different supplier

You have no new messages waiting, but your phone says you ...

https://www3.bellmts.ca > support > troubleshooting > y...

You have no new messages waiting, but your phone says you do Vista 390-350 - Go through the options menu on your telephone and select the Clear Msg Wtg Light option. Regency series - Press and hold down the star * key for five seconds while the phone is hung up.

Advertising and Data Sheet

https://www.atlasphones.com/products/aastra-390-power-touch-display-phone-pt390#:~:text=The%20Aastra%20Power%20Touch%20390,to%20enjoy%20hands%2Dfree%20communication.

Full Manual

https://www.manualslib.com/manual/205077/Aastra-390.html

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I would just use a Y connector.

Google Astra phone manuals. Then you can look it up. Hope that helps

First, remember that newer phones are like small computers, so they may become corrupt over time and you may need to reset them every so often. Simply turn your phone off and remove again the battery for a few seconds, then replace the battery and turn it back on again. Also, make sure there isn't any other bluetooth interference. Then follow the pairing instructions on pages 3-5 from the link below for the Plantronics Explorer 390. Hope this helps.

Plantronics Explorer 390 User's Guide

Good luck from Headsets Direct!

Can't get call waiting to display on my Vista 390

It took me some time, but I found out from the manufacturer Aastra (1-800-288-1683), that the issue with the Vista 390 hands free speaker is related to your internet connection. If your internet is connected to your phone line, you will need to put at least 2 DSL filters on your Vista phone line. I had to put 3 before I could use the speaker phone feature properly. 1 filter by the wall, one by the phone and had to connect a 3rd one before the two-way speaker feature would work properly. Your phone service provider should be able to provide you with these DSL filters...

Hi,

They have Ni Cad Batteries.

Let me know, if needed further assistance.

Hope i helped you.

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