does this framework support VOIP protocol? about cocoamqtt HOT 5 CLOSED

I did a test, when i push the home button of iPhone, the callback mqttDidReceivePong(mqtt: CocoaMQTT) {} can still be executed, and the socket has not been closed.

You could download my latest test code from https://github.com/CrazyWisdom/CocoaMQTT, then run the Example project in it, and click the "Connect" button in the navigation bar.

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I tested your example, the ping pong log print only when the app is on foreground. It likes a reconnect, it prints many logs after i wait a long time at the background state.

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I found a file:https://github.com/Guou/Demo-mqtt-push/blob/master/MQTTKit/MQTTKit/MQTTKit.m
A line like "CFReadStreamSetProperty(readStream, kCFStreamNetworkServiceType, kCFStreamNetworkServiceTypeVoIP);" is about set socket property to VOIP

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Okay,I will have a look.

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@qifx , you could enable VOIP mode use: mqtt.backgroundOnSocket = true
#40

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