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June 1979 (vol. 12 no. 6)
pp. 24-31
J.M. Kasson, Rolm Corporation
The private branch exchange, employing pulse-code modulation and computer-controlled time-division multiplexing, is an increasingly popular tool for enhancing the flexibility and reducing the cost of business telephone operations.
Citation:
J.M. Kasson, "The Rolm Computerized Branch Exchange: An Advanced Digital PBX," Computer, vol. 12, no. 6, pp. 24-31, June 1979, doi:10.1109/MC.1979.1658776
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