01128 a2200253 4500 Nust 20170207152523.0 88082227 0818608293 (OCoLC)19027192 Nust 004.6 Tutorial, digital private branch exchanges (PBXs) / [edited by] Edwin R. Coover. Washington, D.C. : IEEE Computer Society Press ; Los Angeles, CA : [Order from] IEEE Computer Society, c1989. ix, 384 p. : ill., ports. ; 28 cm. What PBXs Do and How They do It (Page-5), PBXs as Office Service Centers (Page-103), A Modern PBX in Detail NEC’s NEAX2400 IMS as Example (Page-153), PBXs as LANs (Page-213), Distrubuted Architectures (Page-265), Positioning for ISDN (Page-301), Almirah No.3 Shelf No.4 Digital electronics. Private branch exchange telephone equipment industry. Telephone switching systems, Electronic. Telephone Private branch exchanges. Coover, Edwin R., 1942- Digital private branch exchanges (PBXs) ddc BK 176338 176338 0 0 ddc 0 0 NFIC MCS MCS 2016-12-12 0 004.6 COO MCS27626 2016-12-08 2016-12-12 BK 0 0 ddc 0 0 NFIC MCS MCS 2016-12-12 0 004.6 COO MCS501 2016-12-08 2016-12-12 BK 0 0 ddc 0 0 NFIC MCS MCS 2016-12-12 0 004.6 COO MCS502 2016-12-08 2016-12-12 BK