demand assignment

In telecommunication, a demand assignment is an operation in which several users share access to a communications channel on a real-time basis, i.e., a user needing to communicate with another user on the same network requests the required circuit, uses it, and when the call is finished, the circuit is released, making the circuit available to other users. Demand assignment is similar to conventional telephone switching, in which common trunks are provided for many users, on a demand basis, through a limited-size trunk group.

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data access arrangement
data bank
data compaction
data element
data forwarder
data integrity
data link
data service unit
data signaling rate
data transmission circuit
date time group

db (car)
db(a)
dbm
dbrn
data circuit terminating equipment
decollimation
decrypt
degradation
degree of isochronous distortion
degree of start stop distortion
dejitterizer

delay
delay encoding
delay line
delta modulation
demand factor
demand load
desensitation
design objective
detector
deterministic routing
d 4

pulse dialing
dial up
dielectric
dielectric strength
differential encoding
differential manchester encoding
diffraction grating
digital access and cross connect system
digital filter
digital milliwatt
digital multiplex hierarchy