+ * Set tls port of server.
+ *
+ * @param tunnel configuration object
+ * @param port tunnel server tls port, recommended value is 443
+ */
+void linphone_tunnel_config_set_port(LinphoneTunnelConfig *tunnel, int port);
+
+/**
+ * Get tls port of server.
+ *
+ * @param tunnel configuration object
+ */
+int linphone_tunnel_config_get_port(const LinphoneTunnelConfig *tunnel);
+
+/**
+ * Set the remote port on the tunnel server side used to test udp reachability.
+ *
+ * @param tunnel configuration object
+ * @param remote_udp_mirror_port remote port on the tunnel server side used to test udp reachability, set to -1 to disable the feature
+ */
+void linphone_tunnel_config_set_remote_udp_mirror_port(LinphoneTunnelConfig *tunnel, int remote_udp_mirror_port);
+
+/**
+ * Get the remote port on the tunnel server side used to test udp reachability.
+ *
+ * @param tunnel configuration object
+ */
+int linphone_tunnel_config_get_remote_udp_mirror_port(const LinphoneTunnelConfig *tunnel);
+
+/**
+ * Set the udp packet round trip delay in ms for a tunnel configuration.
+ *
+ * @param tunnel configuration object
+ * @param delay udp packet round trip delay in ms considered as acceptable. recommended value is 1000 ms.
+ */
+void linphone_tunnel_config_set_delay(LinphoneTunnelConfig *tunnel, int delay);
+
+/**
+ * Get the udp packet round trip delay in ms for a tunnel configuration.
+ *
+ * @param tunnel configuration object
+ */
+int linphone_tunnel_config_get_delay(const LinphoneTunnelConfig *tunnel);
+
+/**
+ * Destroy a tunnel configuration
+ *
+ * @param tunnel configuration object
+ */
+void linphone_tunnel_config_destroy(LinphoneTunnelConfig *tunnel);
+
+/**
+ * Add tunnel server configuration
+ *
+ * @param tunnel object
+ * @param tunnel_config object
+ */
+void linphone_tunnel_add_server(LinphoneTunnel *tunnel, LinphoneTunnelConfig *tunnel_config);
+
+/**
+ * Remove tunnel server configuration
+ *
+ * @param tunnel object
+ * @param tunnel_config object
+ */
+void linphone_tunnel_remove_server(LinphoneTunnel *tunnel, LinphoneTunnelConfig *tunnel_config);
+
+/**
+ * @param tunnel object
+ * returns a string of space separated list of host:port of tunnel server addresses
+ * */
+const MSList *linphone_tunnel_get_servers(LinphoneTunnel *tunnel);
+
+/**
+ * @param tunnel object
+ * Removes all tunnel server address previously entered with addServer()
+**/
+void linphone_tunnel_clean_servers(LinphoneTunnel *tunnel);
+
+/**
+ * Sets whether tunneling of SIP and RTP is required.
+ * @param tunnel object
+ * @param enabled If true enter in tunneled mode, if false exits from tunneled mode.
+ * The TunnelManager takes care of refreshing SIP registration when switching on or off the tunneled mode.
+ *