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Guide to integrating digital services : T1, DDS, and voice integrated network architecture / Robert L. Dayton.

by Dayton, Robert L [author].

Publisher: New York, N.Y. : Intertext Publications, c1989Availability: Items available for loan: COLLEGE LIBRARY [Call number: 621.381011 D337 1989] (1).

ISDN: concepts, facilities, and services / Gary C. Kessler, Peter V. SOuthwick.

by Kessler, Gary C [author].

Edition: Third editionPublisher: New York: McGraw-Hill, c1997Availability: Items available for loan: COLLEGE LIBRARY [Call number: 621.382 K485 1997] (1).