Send item state as notification - FritzBox binding

OH3 - Raspberry4 - openhabian

Hello,

I try to send a changed item state to a notification but I have no idea how it works.

In my application I want to use the resolved callerName from phonebook,
I have the name as itemState but how can I send via notification ?

Please do not post the same topic multiple times and look here https://community.openhab.org/t/oh3-fritzbox-binding-try-to-send-notification-with-resolved-caller-name-from-phonebook/115791?u=hare0815