Integrated voice/data PBXs
By: Communications/Information Systems.
Contributors: Communications/Information Systems.
Series: Communications Systems & Services; Communications Systems & Services (Series)
Publisher: Yankee Group
Published: 1987
Place of publication: Boston, MA (200 Portland St., Boston 02114)
Language: eng
Number of pages: 102
Subjects: Telephone -- United States.; Telephone -- United States -- Private branch exchanges.; Market surveys -- United States.
Notes: "April 1987."