The first solution I can think of for the incoming call notification is Apple's Push Notification service. However, it is not guaranteed.. there's a relatively high chance it may get lost.. and in a VoIP app, the incoming call notification is so important that I can't afford to miss it too often...The first solution I can think of for the incom
阅读背景：
iOS - 在VoIP应用上发送来电通知的最佳做法
来源：互联网
分享到：
