Sometimes you don't want people submitting songs that aren't even in the venue. It can get out of hand with people just entering the venue and singing within 5 minutes. If you notice this happens too much just turn on WiFi Constraint. This feature just forces singers to use the venue's wifi for submitting their songs by phone. Of course you can enter their songs manually as well. It has button that determines the ip address of the venue's wifi and enters it for you once you've logged on to it.