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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 |
|
Communications number assigned by Societe Internationale de Telecommunications Aeronautiques (SITA). |
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| |
AC |
| ARINC |
|
Communications number assigned by Aeronautical Radio Inc. |
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| |
AD |
| Courier |
|
A communication channel identifying a courier. |
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| |
AE |
| Express post |
|
Express (e.g. overnight) postal service document delivery. |
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| |
CA |
| Cable address |
|
The cable is used as communication medium. |
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| |
EI |
| EDI transmission |
|
Number identifying the service and service user. |
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| |
EM |
| Electronic mail |
|
Exchange of mail by electronic means. |
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| |
EX |
| Extension |
|
Telephone extension. |
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| |
FT |
| File transfer access method |
|
According to ISO. |
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| |
FX |
| Telefax |
|
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 |
|
GEIS mailbox system is used as communication medium. |
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| |
IE |
| IBM information exchange |
|
IBM IE is used as communication medium. |
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| |
IM |
| Internal mail |
|
Internal mail address/number. |
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| |
MA |
| Mail |
|
Postal service document delivery. |
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| |
PB |
| Postbox no. |
|
Postbox system is used as communication medium. |
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| |
PS |
| Packet switching |
|
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. |
|
Communications address assigned by Society for Worldwide Interbank Financial Telecommunications s.c. |
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| |
TE |
| Telephone |
|
Voice/data transmission by telephone. |
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| |
TG |
| Telegraph |
|
Text transmission via telegraph. |
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| |
TL |
| Telex |
|
Transmission of text/data via telex. |
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| |
TM |
| Telemail |
|
Transmission of text/data via telemail. |
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| |
TT |
| Teletext |
|
Transmission of text/data via teletext. |
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| |
TX |
| TWX |
|
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 |
|
CCITT Message handling system. |
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