00477cam a2200145 a 4500 0 0 0 0 RIU RIU 2020-10-01 0 004.678 HEL 2378 2020-10-01 00:00:00 1 2020-10-01 BK 688 688 0072131837 (pbk) 004.678 HEL Held, Gil Voice and data internetworking New York McGraw-Hill 2001 xviii, 397 p. : ill. ; 23 cm Data communication Computer networks Telecommunication Voice communication Data transmission Computer network VoIP ATM TCP/IP FC BK