Play workflow activity The Play activity plays a sound file on a Notify call. Input Variables Input variables determine the initial behavior of the activity. Table 1. Input Variables Variable Description URL Enter the URL of a sound file to play. If the URL is inaccessible, or if the audio file mime type is not supported by the telephony provider, the play activity is skipped. Loop Enter the number of times the sound file should play. Conditions The conditions determine which transition comes after this activity. The play activity does not specify any conditions by default. You can create an error condition to handle errors with the sound file. The activity transitions through the error condition if the specified sound file is not available, or has an unsupported mime type. Supported mime types are listed on the Notify Audio MIME Types [notify_mime_type] table.