All through the day, I want call reminders for specific events 10 mins before the meeting time, so I can leave my current meeting with out a hitch and go for the next one. So I used 3 tools for this: Google Calendar to fetch meeting times, Google Calendar to fetch meetings. Twilio to make calls. And finally Google Apps Script to put it altogether.
An interesting implementation by Urwa Shabir on managing meeting schedule using Twilio, Google Calendar and Apps Script.