PABX, interconnect, and the future office controller.
Series: Report - International Resource Development ;; no. 139-
Publisher: International Resource Development
Published: 1980
Place of publication: Norwalk, Conn
Language: eng
Subjects: Telecommunication equipment industry -- United States.; Telephone supplies industry -- United States.; Market surveys -- United States.
Table of contents: title: v. 1. Market review & analysis.