A single PRI can deliver multiple voice calls simultaneously using which of the following Layer 1 technologies?
A. Time division multiplexing
B. Analog circuit switching
C. CSMA/CD
D. Time division spread spectrum
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The Primary Rate Interface (PRI) is a telecommunications interface standard used on an Integrated Services Digital Network (ISDN) for carrying multiple DS0 voice and data transmissions between the network and a user. PRI is the standard for providing telecommunication services to enterprises and offices.