ios - VOIP 服务证书的用途是什么？

Question

在 iOS Developer Portal 的 Certificates, Identifiers & Profiles 中，有一个创建证书以制作 VOIP 服务证书的新选项:

我在 iOS 的 VOIP 应用程序上工作，以前从未见过这个选项。有谁知道什么时候需要这个证书以及它的用途是什么？

Answer 1

来自 Apple 文档: 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.