Support intro
Sorry to hear you’re facing problems 
help.nextcloud.com is for home/non-enterprise users. If you’re running a business, paid support can be accessed via portal.nextcloud.com where we can ensure your business keeps running smoothly.
In order to help you as quickly as possible, before clicking Create Topic please provide as much of the below as you can. Feel free to use a pastebin service for logs, otherwise either indent short log examples with four spaces:
example
Or for longer, use three backticks above and below the code snippet:
longer
example
here
Some or all of the below information will be requested if it isn’t supplied; for fastest response please provide as much as you can 
Some useful links to gather information about your Nextcloud Talk installation:
Information about Signaling server: /index.php/index.php/settings/admin/talk#signaling_server
Information about TURN server: /index.php/settings/admin/talk#turn_server
Information about STUN server: /index.php/settings/admin/talk#stun_server
Nextcloud version (eg, 24.0.1): 34.0.1
Talk Server version (eg, 14.0.2): talk 2.2.0
Custom Signaling server configured: yes
Custom TURN server configured: yes
Custom STUN server configured: yes
Talk Windows version (eg, 14.0.2): 2.2.3
The issue you are facing: Hi, currently the nextcloud talk shows a notification for new messages received showing the sender and the content of the message in windows. This is however not optimal for privacy reasons (if e.g. a client is next to you). Is it possible to only show a notification that a message is received (and if possible the sender) but not the content of the message. I could not find this possibility.