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Isdn: Concepts, Facilities, and Services (McGraw-Hill Series on Computer Communications): Kessler, Gary C., Southwick, Peter V.: 9780070342491: Amazon.com: Books
ISDN Applications in Education and Training (Telecommunications): Mason, Robin, Bacsich, Paul: 9780852968604: Amazon.com: Books
Amazon.com: Cisco High-Speed Channelized T1/E1 and ISDN PRI - ISDN terminal adapter (Renewed) : Electronics
Isdn: Integrated Services Digital : Das Diensteintegrierends Digitale Nachrichtennetz: 9780387174464: Amazon.com: Books
Amazon.com: ADTRAN ISU 2 X 64 (U Interface) Standalone ISDN Bri Ta : Electronics