The Audio Alerts are really created to best work on desktop computers (as opposed to smart phones/tablets). The reason for this is that anytime you navigate away from the page on your phone/tablet, the audio alerts will not sound. Also, as soon as your phone/tablet 'sleeps' the audio alerts page will not sound.
If you do choose to run the browser alerts on phone/tablet, just remember that it will only work if your screen is powered on and the Sub Sidekick page is open. Otherwise, alerts will not be delivered.
The good news is that even if you must navigate away from our page and miss the audio alert, you can still receive text and/or email alerts so that you don't ever miss a job. Between all 3 options, you should be able to receive an audio alert of some sort any time of day.
If you need any further assistance, please submit a new ticket to our support team.