linphone-iphone在background-mod中無法收到來電？

Question

我在iOS應用中使用linphone SDK。

當應用程序進入后台模式時，應用程序有時可能會收到來電或推送通知消息，有時則不會。

或者，如果該應用在幾分鍾前處於后台模式，則無法接到來電。

請幫幫我。

我使用ipad在后台模式下的iPhone中呼叫。

ipad的日志：

linphone[2767:1066909] [Message] Garbage collecting unowned object of type LinphoneCallStats
linphone[2767:1066909] [Message] Garbage collecting unowned object of type LinphoneCallStats
linphone[2767:1066909] [Message] Garbage collecting unowned object of type LinphoneCallStats
linphone[2767:1066909] [Message] Garbage collecting unowned object of type LinphoneCallStats
linphone[2767:1066909] [Message] Garbage collecting unowned object of type LinphoneCallStats
linphone[2767:1066909] [Message] Garbage collecting unowned object of type LinphoneCallStats
linphone[2767:1066909] [Message] Garbage collecting unowned object of type LinphoneCallStats
linphone[2767:1066909] [Message] Garbage collecting unowned object of type LinphoneCallStats

當我讓手機到達前台時可以撥打。

linphone[2767:1066909] [Message] Garbage collecting unowned object of type LinphoneCallStats
linphone[2767:1066909] [Message] Garbage collecting unowned object of type LinphoneCallStats
linphone[2767:1066909] [Message] Garbage collecting unowned object of type LinphoneCallStats
linphone[2767:1066909] [Message] Background task belle-sip recv channel started. Unknown remaining time since application is not fully in background.
linphone[2767:1066909] [Message] channel [0x10eb70000]: starting recv background task with id=[94].
linphone[2767:1066909] [Message] channel [0x10eb70000]: received [437] new bytes from [TLS://sip.linphone.org:5223]:
linphone[2767:1066909] [Message]    SIP/2.0 180 Ringing
linphone[2767:1066909] [Message]    Via: SIP/2.0/TLS 192.168.1.232:58394;received=220.134.182.243;branch=z9hG4bK.5fJXlLPwC;rport=58394
linphone[2767:1066909] [Message]    Record-Route: <sips:37.59.51.72:5223;lr>

Answer 1

處於后台模式的iOS APP可能已暫停。 您可以使用PushKit，在向APP進行VoIP呼叫之前向APP發送通知。 關於PushKit，您可以訪問https://developer.apple.com/documentation/pushkit祝您好運！