语言与数据通信手册

chapter 1 the history of telecommunications
chapter 2 voice characteristics
chapter 3 the telephone network
chapter 4 the telephone set
chapter 5 analog versus digital transmission
chapter 6 carriers
chapter 7 lines versus trunks
chapter 8 traffic engineering
chapter 9 epuipment:private branch exchanges
chapter 10 key telephone systems
chapter 11 voice processing
chapter 12 computer-to-telephony integration(cti)
chapter 13 data communications
chapter 14 t1 and the t-carrier systm
chapter 15 the open systems interconnect model(osi)
chapter 16 internet
chapter 17 intranet
chapter 18 packet switching technologies(x.25)
chapter 19 local networks(lans)
chapter 20 ethernet
chapter 21 token ring lans
chapter 22 baseband versus broadband
chapter 23 fiber distributed data interface
chapter 24 switched multimegabit date services
chapter 25 frame relay
chapter 26 integrated services digital network
chapter 27 asynchronous transfer mode
chapter 28 cellular and personal communications systems
chapter 29 radil systems
chapter 30 light systems
chapter 31 video conferencing
chapter 32 finances for telecommunications
chapter 33 facsimile
chapter 34 cabling systems
appendlx
index