Lines and TerminatorsForwarding and LatencyYour Modem, the Information DrivewayLatency and throughput modem to modemGetting synchronousHardware compressionError correctionLine qualityInternal modems are fasterUART buffer overrunsAT commands and dialing timeBonding channelsISDNCable ModemsxDSLHigher Capacity Lines56K, T1, and T3Frame RelayATMSatellite