Furuno FELCOM 15 Service Manual page 137

15. If there are no further calls, the LES begins the call clearing process by sending a
"Clear" packet.
16. After receiving the "Clear" packet the MES synchronizes to the NCS common
channel to go to idle status.
17. The LES tells the NCS that the MES is idle.
18. The NCS updates its data base to show the MES is idle.
AP1-14
AP1.2 Message & Signal Transfer