**/
enum _LinphoneIceState{
LinphoneIceStateNotActivated, /**< ICE has not been activated for this call */
+ LinphoneIceStateFailed, /**< ICE processing has failed */
LinphoneIceStateInProgress, /**< ICE process is in progress */
LinphoneIceStateHostConnection, /**< ICE has established a direct connection to the remote host */
LinphoneIceStateReflexiveConnection, /**< ICE has established a connection to the remote host through one or several NATs */