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AO/DI

   Also found in: Acronyms 0.03 sec.

(Always On/Dynamic ISDN) A connection between an ISDN customer and an information service provider using the X.25-based D channel, which is a signaling channel that is always active. AO/DI uses 9.6 Kbps of the 16 Kbps D channel and switches to a circuit-switched B channel when more bandwidth is required. It enables low-bandwidth traffic, such as e-mail, newsfeeds, automatic data collection and credit card verifications, to be handled quickly and cost effectively. See ISDN.
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AO/DI makes optimal use of ISDN bandwidth via the low-bandwidth ISDN D channel, normally reserved for protocol commands.
Eicon Introduces DIVA LAN ISDN Modem - The Complete Communications ... by Business Wire
AO/DI makes optimal use of ISDN bandwidth via the low-bandwidth ISDN D channel, normally reserved for protocol commands.
Eicon Introduces DIVA LAN ISDN Modem - The Complete Communications ... by Business Wire
AO/DI is a standard endorsed by the Vendor's ISDN Association that allows data to be sent over the lower cost D-channel.
Eicon to Serve as a Major Sponsor and Contributor to the Global ISDN ... by Business Wire
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