• Marlink - BE02, DP02, NL02, NO01, US03

• A method to divide the message in different parts and allocates to each part of a different code.
• To read a message, only the addressee's phone, fax, or telex knows how to recompose the message with the different codes used for each part.

CDR (Call Data Record)

CHARTERER
A legal person or physical person who rents a capacity to carry (cargo), lift (crane or salvage) or perform an operation (cable layer) for a period of time. Can be "bare boat" with no crew and captain or with captain and crew.

CLIENT
Name of Customer.

COASTAL RADIO
Communication via Coastal Radio

COMMS DETAILS
Mode of Communication Used

CON Free
Negative Delivery Notification

CR Costal Radio
Radio transmission

CR EMAIL
E-mail transmission via Coastal Radio

CREW
All operational persons aboard a vessel including Captain (Master ), Officers and Ratings.

• Collection charges
• Maritime billing in Maritime Mobile Services
• International accounts and settlement.

D.91
A CDR billing format based on the recommendations made by the ITU-T concerning:

• General tariff principles
• Charging and accounting in mobile services
• Monthly international accounting information - fixed record formats
• File description
• Characteristics and structure of the tape
• Procedures and actions for the international exchange of traffic information in encoded form.
• Contents of data files.

DATE
Date of communication

DECT
Acronym for Digital European Cordless Telephony.

DEPARTMENT
Can be anything requiring separate financial accounting or cost center, either on board or on shore. Bar, pool engine room, entertainment (Casino), restaurant, logistics, operations, etc...

DESTINATION
Number Destination (AKA B-number)

DOS (Disk Operating System) (See also MS-DOS)
A computer operation system to schedule/supervise work, manage computer resources, and operate/control peripheral devices including disc drive, keyboards, screens, and printers.

DR
Short form for "Data Report".

DTMF (Dual Tone Multi-Frequency)
Baseband multiplexing is not performed on DTMF signals. The signal generated by a DTMF encoder is a real-time direct algebraic summation of the amplitudes of two sine (cosine) waves of different frequencies. For example, pressing '1' will send a tone made by adding 1209 Hz and 697 Hz to the other end of the line.

DTO
Currency Amount.

Duplex
Simulateneous bi-directional independent transmission in both directions.

E-mail
The distribution of addressed electronic mail messages. users retrieve mail from a mail box when convenient.

ED Eik Direct
Communication initiated using Satellite Direct.

ED Eik Direct HSD
High-Speed Data Communication initiated using Satellite Direct.

EDI (Electronic Data Interchange)

• An exchange of structured business documents between organisations.
• It can benefit from the use of robust messaging infrastructures.

EGC
Enhanced Group Calling.

ENID
EGC network identification.

ESAS
Acronym for Electronic Service Activation System

• A method to divide the message into several pieces and allocate each piece a different frequency.
• For reading the message, only the addressee's phone, fax, or telex knows how to recompose the message with the different frequencies used for each piece.

FLEET
Communication via Inmarsat Fleet.

FLEET 9.6 Fax, Data
9.6 kbps data or fax transmission via Inmarsat Fleet.

FLEET Fax, Data
Fax or data transmission via Inmarsat Fleet

FLEET HSD
Use of High-Speed Data service via Inmarsat Fleet.

FLEET Mpds
Transmission of data using MPDS via Inmarsat Fleet.

FLEET Voice
Voice call via Inmarsat Fleet

FTP
Acronym for File Transfer Protocol.

• A computer system and its software that permits two networks using different protocols to communicate with each other.
• Common gateways hook PC-based LANs into IBM mainframes (SNA gateways) or to X.25 packet switched public network systems (X.25 gateways).

GMDSS (Global Marine Distress and Safety System)
A digital VHF radio system for communication and distress traffic. See IMO for more details.

• Function used to send compressed messages.
• Provided with Marlink software @SEAmail and Hublink^TM.

HUB FAX
Fax transmission via Hublink.

HUB TELEX
Telex transmission via Hublink

HUBLINK
Centralised store-and-forward e-mail hub supported by 24/7 monitoring. Hublink system includes technical support, mailbox back-up, Anti-virus, Anti-spam, Fax/Telex support.

HUBLINK (E-MAIL) LAND LINE
Shore-to-shore e-mail via Hublink. A shore subscriber sends a message through the hub to another shore subscriber. No satellite hub (use) is incurred. A landline fee will be incurred if the communication is an e-mail to the hub with a fax delivery to a shore subscriber.

HUBLINK (E-MAIL) subscription Fees
Fee charged for subscription to Hublink services (@SEAmail)

• Offers world-wide satellite converage.
• Increasingly covers aeronautical and mobile, as well as maritime, satellite communications.
• A private company from the end of 1998.

INMARSAT A
The original Inmarsat system, begun in 1982. It was based on analogue techniques and was capable of global two-way telephony, facsimile, data and telex communications. This service was discontinued on 31 December 2007.

INMARSAT B
An Inmarsat system based on digital technology, and capable of high quality telephony, facsimile, data and telex services.

INMARSAT C
A digital system based on a low-cost MES with low power consumption. This system provides global two-way store-and-forward messaging, distress alerting, EGC SafetyNETTM and FleetNETTM, data reporting and polling.

INMARSAT M
Introduced in 1993, based on digital technology and capable of two-way voice telephony, distress alerting, fax and data services at lower data rates.

INMARSAT MINI M
Introduced in 1995, based on digital technology and capable of two-way voice telephony, alerting, fax and data services. Operates only in the reduced coverage offered by the spot beams.

INM-C, TWO STAGE
Communication via Inmarsat C (see "Two Stage" for more information).

Internet

• Biggest data interchange network of the world, conceived in the USA in 1969 and born in 1983. Went public in 1991 and multi-media in 1992.
• 12 million hosts in 1996 and an estimated 128 million users.
• Used 46% by corporate entities.
• In shipping:
  • Brokers
  • ports, agents, liner operators
  • Information providerss (SEANET, Fairplay, MARLINK)

IP (Internet Protocol)
An identity number used to identify the sender and the receiver of a message on the Internet.

IRIDIUM
Based on constellation of 66 low-earth orbiting (LEO), cross-linked satellites and 12 in-orbit spares. Capable of two-way voice, paging and data services.

IRIDIUM CALL FORWARD
Call Forwarding

IRIDIUM DATA
Data transmission via Iridium.

IRIDIUM INCOMING
Two-stage dialling

IRIDIUM IRIDIUM HUB
atSEAmail calls have been redirected to service Iridium Data.

IRIDIUM NO CHARGE
Prepaid Calls and Personal Mailbox Access Calls.

IRIDIUM SAT. DIRECT
Call to Iridium handset initiated using Satellite Direct Service.

IRIDIUM SMS
SMS transmitted via Iridium.

IRIDIUM SUBSCRIBER
Subscription fee for Iridium Services.

IRIDIUM VOICE
Voice Communications via Iridium.

ISDN (Integrated Services Digital Network)
Digital telephone system combining voice and data transmission.

ISM (International Safety Management Code)

• Mandatory from July 1998 for a large percentage of the world fleet.
• International quality code similar to ISO 9000
• "The company should establish procedures to ensure that the ship is maintained in conformity with the rules and regulations and with any additional requirements which may be established by the Company." (Art. 10.1)
• "In meeting these requirements the company should ensure that:
  • Inspections are held at appropriate intervals.
  • Any non-conformity is reported with is possible cause, if known.
  • Appropriate corrective action is taken and records of these activities are maintained."
• Product made for helping ship management: ISM Solutions.
• More information: info@ISM-Solutions.com

ISP
Acronym for 1) Inmarsat Service Provider 2) Internet Service Provider

ITA2 (International Telegraph Alphabet)
International Telegraph Alphabet used by the telex to transmit communications over the world.

ITU (International Telegraph Union)
Division of the United Nations, issuing recommendations on standardisation of telecommunications on a world-wide basis.

ITU-T

• Ex-CCITT committee issuing recommendations such as D.90 and D.91.
• ITU-T is responsible for studying technical operating, and tariffs questions.
  

LAN (Local Area Network)

• A type of high-speed data communications arrangement wherein all segments of the transmission medium are in an office or campus environment under the control of a network operator.
• A network made by the computers of one company network.

M4-ISDN
Global Area Network (GAN) ISDN transmission

MAC (Medium Access Control)
Identity number to send and receive messages, used to communicate between networks through routers.

MarlinkOnboard
Subscription service. Synchronization module allowing connection to MarlinkOnline account data for further viewing and analysis while offline.

MINI-M
See INMARSAT MINI M

MINUTES
Unit of time for recording transmission length

MM Big Dish Voice, Fax, Data
Voice, fax or data transmission via mini-M

MM EM 65
E-mail transmission via mini-M

OFF-PEAK
Period of day when communication lines are not as heavily in use as during PEAK period. Rates for communications are lower than during PEAK times.

ONE TIME CHG
Shipping Charges, etc

OS (Operating System)

OWNER
The legal entity or physical persons with effective control of a beneficial asset whether or not they operate and manage it (in most cases in this environment, a vessel).

PABX (Private Automatic Branch Exchange)
Automated switching system used to serve a private telephone system such as an office. Available for analog or digital systems.

PASSENGER
Person on board with no operational duties or responsibilities. Generally paying for passage from a location to a destination.

PEAK
Period of day when communication lines are heavily in use. Rates for communications are higher than during OFF-PEAK times.

PIN Code (Personal Input Number code)
A code number that gives access to an account

Polling
Polling involves sending a command to a terminal either 1) to have the terminal generate and transmit a report or 2) to flash the terminal with a script for configuration/upgrade purposes.

POP3 (Post Office Protocol 3)
Standard client/server protocol for receiving e-mail. E-mail is received and held for you on your mail service provider's server, working as a store-and-forward service. Whenever you connect to your mail server to check your mailbox any stored e-mail is downloaded to the mail client on your machine. Once the e-mail is downloaded locally you can review your e-mail off-line. (see IMAP)

PREFIX
Pin code for Split Billing

PSA
Acronym for Point of Service Activation

PSA-ESAS
Software enabling the PSA to send service activation data remontely into ESAS

PSDN (Packet Switched Data Network)
Packet switched data network, usually X.25, in which information is transmitted in packets.

PSTN (Public Switched Telephone Network.)

PUK (PIN Unlock Code)
Eight numbers used to unlock a mini-M.

RADIO
Radio transmission

Regional BGAN
Communication via Inmarsat Regional BGAN

Reverse Charging (also called Reversed Charging)
The terminal owner agrees to pay for transmissions originating from the Internet to his terminal.

RLES (Regional Land Earth Station)

Route
Route or path through the network followed by the data to reach the recipient.

Router IP
   Used to:

• Relay the data between the terminal equipment
• Intercede with the network
• Take a MAC message segment from one of their interfaces, re-send them to another interface, and transform them into another MAC message segment

WAN (Wide Area Network)
Large networks in which connections between different cities or nations are made.

X.25

• A communication norm ISO 8208.
• The communications protocol used on the national/international PSDN networks to exchange digital data between devices attached to the network.

• A messaging handling protocol used on the national/international X.25 (PSDN) networks by E-mail services around the world to exchange messages and electronic files between subscribers.
• It is used to exchange all sorts of information between users including:
  • simple text
  • images (fax and graphics)
  • digital voice
  • spreadsheets
  • multi-media hypertext

• Name for a standards-based information structure called the Global Directory Information Tree (DIT) and directory processing entities that access and maintain the DIT
• Composed of four elements:
  • Directory system Agent (DSA) servers, where each one holds a portion of the directory database
  • Directory User Agents (DUA), which are clients that act on behalf of the user to access the directory
  • Directory System Protocol (DSP), which enables the communication between DSAs
  • Directory Access Protocol (DAP), which enables the DUA to communicate with DSAs

The following resources may be of assistance:

• www.acronymfinder.com
• www.dictionary.com
• www.whatis.com