These statuses are used in connection with the CTI integration
The CTI (Computer - Telephone Integration) allows you to log issues for incoming and outgoing calls.
You activate it in General - Settings - Integrations - CTI.
If this is activated, you will see a "Call" icon in the edit issue page. Clicking on it will show a dialog where you can see the phone numbers and quickly set how your call (Interaction) was resolved, if someone answered or not.
The initially created interaction statuses are:
- No answer