ISDN
ISDN - Integrated Services Digital Network. Black Box develops your internet access and ISDN solutions.
ISDN is an international telecomuunications standard for transmission over digital lines running at 64 kbps. ISDN uses 64-kbps circuit-switched channels, called B channels, or "bearer" channels, and a separate D channel, or "delta," channel for control signals.
If you want any further information on ISDN, contact Black Box.
ISDN
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ISDN, isdn, ISDN tester, ISDN modem, DSL, digital subscriber line, integrated services digital network
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