Store & forward voice switching
By: International Resource Development Inc.
Contributors: International Resource Development, inc.
Series: Report ;; #658; Report (International Resource Development, inc.) ;; #658.
Publisher: IRD
Published: 1985
Place of publication: Norwalk, Conn., U.S.A. (6 Prowitt St., Norwalk 06855)
Language: eng
Number of pages: 154
Subjects: Telephone supplies industry -- United States.; Market surveys -- United States.
Other titles: Store and forward voice switching.
Notes: "June 1985."