United Nations Directories
for Electronic Data Interchange for
Administration, Commerce and Transport


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3153 Communication medium type code [C]

Desc: Code specifying the type of communication medium. Repr: an..3 Code Values: AA Circuit switching 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). AB SITA Communications number assigned by Societe Internationale de Telecommunications Aeronautiques (SITA). AC ARINC Communications number assigned by Aeronautical Radio Inc. AD Courier A communication channel identifying a courier. AE Express post Express (e.g. overnight) postal service document delivery. CA Cable address The cable is used as communication medium. EI EDI transmission Number identifying the service and service user. EM Electronic mail Exchange of mail by electronic means. EX Extension Telephone extension. FT File transfer access method According to ISO. 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. GM GEIS (General Electric Information Service) mailbox GEIS mailbox system is used as communication medium. IE IBM information exchange IBM IE is used as communication medium. IM Internal mail Internal mail address/number. MA Mail Postal service document delivery. PB Postbox no. Postbox system is used as communication medium. 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). SW S.W.I.F.T. Communications address assigned by Society for Worldwide Interbank Financial Telecommunications s.c. TE Telephone Voice/data transmission by telephone. TG Telegraph Text transmission via telegraph. TL Telex Transmission of text/data via telex. TM Telemail Transmission of text/data via telemail. TT Teletext Transmission of text/data via teletext. 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. XF X.400 CCITT Message handling system.

Data Element Cross Reference

DataElement 3153 is used in the following Batch Segments:


DataElement 3153 is used in the following Interactive Composite Elements:

E024 E966

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