How to resume playing from background

I am making an online radio station app. The app works good.

My radio doesn't resume after the call is ended. And I have to restart it again.

Here is my code:

    void MyAudioSessionInterruptionListener(void *inClientData, UInt32 inInterruptionState)
    {
        ShoutcastAudioStreamer *radio = (ShoutcastAudioStreamer*)inClientData;
        if (inInterruptionState == kAudioSessionBeginInterruption) {
            [radio stop];
            NSLog(@"kAudioSessionBeginInterruption");
        }
        else if (inInterrup开发者_StackOverflow中文版tionState == kAudioSessionEndInterruption) {
        //  [radio start]; // this doesn't work - radio is gone
;
        }
    }

Can any one help?

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similar questions were found, but without reply too...

Do not get the AudioListenerInterruptionEnd trigger

https://stackoverflow.com/q/8819315/751932

Probably it can help you.