--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mmmw_plat/telephony_multimedia_service_api/inc/tmsclientsinkobsrvr.h	Tue Feb 02 01:08:46 2010 +0200
@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2009 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: Telephony Multimedia Service
+ *
+ */
+
+#ifndef TMS_CLIENT_SINK_OBSRVR_H
+#define TMS_CLIENT_SINK_OBSRVR_H
+
+// Include files
+
+namespace TMS {
+
+// FORWARD DECLARATIONS
+class TMSBuffer;
+
+/**
+ * TMSClientSinkObserver class
+ *
+ * This class provides callback mechanism for TMSClientSink listeners.
+ *
+ * Client class that wants to receive data buffer events from TMS must inherit
+ * from TMSClientSinkObserver class and register itself with the TMSBuffer
+ * object.
+ *
+ * Functions declared in this class are called when data is available at the
+ * sink and pushed to the application for further processing.
+ *
+ * The client must not do any blocking, or perform any CPU-intensive operations
+ * in the callback methods. It is recommended that the client saves event data,
+ * returns from this function immediately and if necessary, responds to
+ * the event in asynchronous way.
+ *
+ * @lib tmsapi.lib
+ *
+ */
+class TMSClientSinkObserver
+    {
+public:
+    /**
+     * This method is called when the TMS pushes data buffers to the Client.
+     *
+     * Only push mode is supported at this moment.
+     *
+     * @param  buffer
+     *      Buffer with recorded data to be emptied by the client.
+     *
+     */
+    virtual void ProcessBuffer(TMSBuffer* buffer) = 0;
+    };
+
+} //namespace TMS
+
+#endif // TMS_CLIENT_SINK_OBSRVR_H
+
+// End of file