What is the VOIP Services Certificate used for?

Question

In Certificates, Identifiers & Profiles on the iOS Developer Portal there is a new option when creating a certificate to make a VOIP Services Certificate:

I work on VOIP apps for iOS and have never seen this option before. Does anyone know when this certificate would be necessary and what it would be used for?

Answer 1

From Apple Doc: here

In iOS 8 and later, voice-over-IP (VoIP) apps register for UIRemoteNotificationTypeVoIP push notifications instead of using this method. Using push notifications eliminates the need for a timeout handler to check in with the VoIP service. Instead, when a calls arrives for the user, the VoIP service sends a VoIP push notification to the user’s device. Upon receiving this notification, the device launches or wakes the app as needed so that it can handle the incoming call.