background-mod 中的 linphone-iphone 无法接听来电？

Question

我在 iOS 应用中使用 linphone SDK。

当应用程序进入后台模式时，应用程序有时会收到来电或推送通知消息，有时不会。

或者如果应用在几分钟前处于后台模式，则无法接听来电。

请帮帮我。

我用 ipad 调用了处于后台模式的 iPhone。

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

当我让电话到前台时可以拨打。

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

后台模式下的iOS APP可能会被挂起。您可以使用 PushKit，在向 APP 发起 VoIP 呼叫之前向 APP 发送通知。 关于 PushKit 可以访问https://developer.apple.com/documentation/pushkit 祝你好运！