diff -r 6aaf0276100e -r c76a0b1755b9 phoneplugins/csplugin/inc/cspaudiohandlerbase.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/phoneplugins/csplugin/inc/cspaudiohandlerbase.h	Fri Sep 17 08:29:19 2010 +0300
@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
+ * All rights reserved.
+ * This component and the accompanying materials are made available
+ * under the terms of "Eclipse Public License v1.0"
+ * which accompanies this distribution, and is available
+ * at the URL "http://www.eclipse.org/legal/epl-v10.html".
+ *
+ * Initial Contributors:
+ * Nokia Corporation - initial contribution.
+ *
+ * Contributors:
+ *
+ * Description:  Audio stream controlling interface
+ *
+ */
+
+#ifndef CSPAUDIOHANDLERBASE_H_
+#define CSPAUDIOHANDLERBASE_H_
+
+class MCSPAudioHandlerObserver;
+
+/**
+ * Provides interface for controlling audio streams.
+ *
+ */
+class CSPAudioHandlerBase : public CBase
+    {
+public:    
+
+    /*
+     * Set observer to receive call audio stream events.
+     */
+    virtual void SetObserver(MCSPAudioHandlerObserver& aObserver) = 0;
+
+    /**
+     * Start audio streams.
+     */
+    virtual void Start() = 0;
+
+    /**
+     * Stop audio streams.
+     */
+    virtual void Stop() = 0;
+
+    /*
+     * Specify timeout after which stream start retry will be terminated.
+     */
+    virtual void ReportAudioFailureAfterTimeout(TInt aTimeout) = 0;
+
+    };
+
+#endif /* CSPAUDIOHANDLERBASE_H_ */