Goldstein, Fred R.
ISDN in perspective - Reading, Mass. : Addison-Wesley Pub.Co., 1992 - 246
INTEGRATED SERVICES DIGITAL NETWORKS
TK5103.75 / G642I
ISDN in perspective - Reading, Mass. : Addison-Wesley Pub.Co., 1992 - 246
INTEGRATED SERVICES DIGITAL NETWORKS
TK5103.75 / G642I