Limits on iPhone push notification sounds?

Question

Does anybody know of any limitations on the sounds that can be played when an iPhone app receives a push notification? Specifically, is there a maximum sound length?

Al

Answer 1

Here's the reference in Apple's documentation (30 seconds is correct): https://developer.apple.com/library/ios/#documentation/NetworkingInternet/Conceptual/RemoteNotificationsPG/IPhoneOSClientImp/IPhoneOSClientImp.html#//apple_ref/doc/uid/TP40008194-CH103-SW6