This revised, updated edition begins with the basics of modem communication followed by a description of how the technician installs and troubleshoots modems of all kinds. Discusses new modem standards, special problems involved with fax modems, how pocket and PCMCIA (credit-card sized) modems can be installed and used with a minimum of problems. Includes a new chapter covering dial-up and leased line modem network management systems. Illustrated.