Navigate to Settings > Phone Settings > Automation Settings.
Customize the automated message for both during and after office hours with your preferred wording.
Click Update to save your changes.
Turn on the pink toggle switch to activate the feature.
Your office will now automatically send SMS messages to missed callers based on your configured settings.
Note: To configure your office hours, Navigate to Settings > Phone Settings > Call Schedule.
For instructions on setting up the Incoming Call Schedule, refer to this article.