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AA |
| Circuit switching |
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A process that, on demand, connects two or more data terminal equipments and permits the exclusive use of a data circuit between them until the connection is released (ISO). |
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AB |
| SITA |
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Communications number assigned by Societe Internationale de Telecommunications Aeronautiques (SITA). |
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AC |
| ARINC |
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Communications number assigned by Aeronautical Radio Inc. |
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AD |
| Courier |
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A communication channel identifying a courier. |
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CA |
| Cable address |
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The cable is used as communication medium. |
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EI |
| EDI transmission |
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Number identifying the service and service user. |
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EM |
| Electronic mail |
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Exchange of mail by electronic means. |
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EX |
| Extension |
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Telephone extension. |
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FT |
| File transfer access method |
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According to ISO. |
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FX |
| Telefax |
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Device used for transmitting and reproducing fixed graphic material (as printing) by means of signals over telephone lines or other electronic transmission media. |
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GM |
| GEIS (General Electric Information Service) mailbox |
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GEIS mailbox system is used as communication medium. |
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IE |
| IBM information exchange |
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IBM IE is used as communication medium. |
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IM |
| Internal mail |
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Internal mail address/number. |
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MA |
| Mail |
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Postal service document delivery. |
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PB |
| Postbox no. |
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Postbox system is used as communication medium. |
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PS |
| Packet switching |
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The process of routing and transferring data by means of addressed packets so that a channel is occupied only during the transmission; upon completion of the transmission the channel is made available for the transfer of other packets (ISO). |
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SW |
| S.W.I.F.T. |
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Communications address assigned by Society for Worldwide Interbank Financial Telecommunications s.c. |
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TE |
| Telephone |
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Voice/data transmission by telephone. |
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TG |
| Telegraph |
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Text transmission via telegraph. |
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TL |
| Telex |
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Transmission of text/data via telex. |
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TM |
| Telemail |
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Transmission of text/data via telemail. |
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TT |
| Teletext |
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Transmission of text/data via teletext. |
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TX |
| TWX |
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Communication service involving Teletypewriter machines connected by wire or electronic transmission media. Teletypewriter machines are the devices used to send and receive signals and produce hardcopy from them. |
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XF |
| X.400 |
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CCITT Message handling system. |
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