*/
int sound_manager_get_index_from_stream_information(sound_stream_info_h stream_info, int *index);
+/**
+ * @internal
+ * @brief Gets the internal stream information handle for VoIP session.
+ * @since_tizen 3.0
+ *
+ * @remarks If VoIP session is not set in this process, it'll return #SOUND_MANAGER_ERROR_NO_DATA.
+ *
+ * @param[out] stream_info The handle of stream information
+ *
+ * @return @c 0 on success,
+ * otherwise a negative error value
+ * @retval #SOUND_MANAGER_ERROR_NONE Success
+ * @retval #SOUND_MANAGER_ERROR_INVALID_PARAMETER Invalid parameter
+ * @retval #SOUND_MANAGER_ERROR_NO_DATA No data
+ * @see sound_manager_set_session_type()
+ * @see sound_manager_set_voip_session_mode()
+ */
+int sound_manager_get_internal_voip_stream_information(sound_stream_info_h *stream_info);
+
+/**
+ * @internal
+ * @brief Disable session backward compatibility.
+ * @since_tizen 3.0
+ *
+ * @remarks Multimedia framework support backward compatibility of legacy sound session. \n
+ * If a process does not want legacy sound session behavior in each multimedia framework, \n
+ * this function can be used explicitly not to support that.
+ *
+ * @return @c 0 on success,
+ * otherwise a negative error value
+ * @retval #SOUND_MANAGER_ERROR_NONE Success
+ * @retval #SOUND_MANAGER_ERROR_INVALID_PARAMETER Invalid parameter
+ * @retval #SOUND_MANAGER_ERROR_INTERNAL Internal error inside the sound system
+ */
+int sound_manager_disable_session_backward_compatibility(void);
+
/**
* @internal
* @brief Creates a virtual stream handle.