NUST Institutions Library Catalogue catalog › Results of search for '(su:"Telephone") AND (su:"Private branch exchanges.")'

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		PBX systems for IP telephony Allan Sulkin. by Sulkin, Allan. Material type: Text; Format: print ; Literary form: Not fiction Publisher: New York : McGraw-Hill, 2002Online access: Contributor biographical information \| Table of contents Availability: Items available for loan: Pakistan Navy Engineering College (PNEC)Call number: 621.385 SUL (1). Place hold Find in NUST Repository
		Tutorial, digital private branch exchanges (PBXs) / [edited by] Edwin R. Coover. by Coover, Edwin R, 1942-. Publisher: Washington, D.C. : Los Angeles, CA : IEEE Computer Society Press ; [Order from] IEEE Computer Society, c1989Availability: Items available for loan: Military College of Signals (MCS)Call number: 004.6 COO (3). Place hold Find in NUST Repository