00575nam a22001457a 4500 0070472815 (pbk) 621.382 BAT Bates (Bud),Regis J. Donald W. Gregory Voice and data communications handbook New Delhi Tata McGraw Hill 2001 xviii, 1073 p. : ill. 24 cm. Telecommunications Voice and data communications Hand book Telephone network Analog communications Carriers Traffic engineering calculations Lines and trunks Intranet OSI model FEAS BK 0 0 0 1 RIU RIU 2012-10-02 Purchesed: Alvi Book Bank 350.00 0 621.382 BAT 4159 2012-10-02 00:00:00 1 2019-02-21 BK Reference: 5199 5199