United Nations Directories
for Electronic Data Interchange for
Administration, Commerce and Transport
a plus sign (+) for an addition
an asterisk (*) for an amendment to structure
a hash sign (#) for changes to names
a vertical bar (|) for changes to text for descriptions and
a minus sign (-) for marked for deletion (within either
batch and interactive messages)
a X sign (X) for marked for deletion (within both batch
and interactive messages)
3153 Communication medium type code [C]
Desc: Code specifying the type of communication medium.
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
Communications number assigned by Societe Internationale
de Telecommunications Aeronautiques (SITA).
Communications number assigned by Aeronautical Radio
A communication channel identifying a courier.
AE Express post
Express (e.g. overnight) postal service document
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.
FT File transfer access method
According to ISO.
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.
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).
Communications address assigned by Society for Worldwide
Interbank Financial Telecommunications s.c.
Voice/data transmission by telephone.
Text transmission via telegraph.
Transmission of text/data via telex.
Transmission of text/data via telemail.
Transmission of text/data via teletext.
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.
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:
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