This will allow you to receive a phone call on your cell phone for Google Calendar events on your specified calendar that also matches a specific keyword, you can also set when you are notified of the event.
If
Event from search starts
This Trigger fires a set number of minutes before the starting time of an event on your Calendar that contains a specific keyword or phrase in the event’s Title, Description, or Location. Ingredient will be based on the zone set in Google.
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Explore more great ways to automate Google Calendar and Phone Call (US only)