How to set a flow triggered by an incoming voice call MessageBird July 23, 2020 12:05 Updated Follow In this guide, you'll learn how to set a flow triggered by an incoming voice call from your user with Flow Builder. Related articles How to set a flow triggered by an incoming SMS How to set a flow triggered by a webhook How to use the send conversation message step How to set a flow triggered by an incoming omnichannel message How to use the fetch variable step