Ship movement service



Ship movement service (short: SMS; &#124; also: ship movement radiocommunication service) is – according to Article 1.31 of the International Telecommunication Union's (ITU) Radio Regulations (RR) – defined as «''A safety service in the maritime mobile service other than a port operations service, between coast stations and ship stations, or between ship stations, in which messages are restricted to those relating to the movement of ships. Messages which are of a public correspondence nature shall be excluded from this service''.»


 * See also:

Classification
The ITU Radio Regulations classifies this radiocommunication service as follows:

Mobile-satellite service (article 1.25)
 * Maritime mobile service (article 1.28)
 * Maritime mobile-satellite service (article 1.29)
 * Port operations service (article 1.30)
 * Ship movement service

References / sources

 * International Telecommunication Union (ITU)