ISDN modem capable of self-configuring to use one of a variety o

Multiplex communications – Communication techniques for information carried in plural... – Adaptive

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370250, 370437, 375222, 375231, H04J 316

Patent

active

058645594

ABSTRACT:
An ISDN modem is preprogrammed to operate by any one of multiple ISDN protocols, and is provided with a setup program wherein, with the modem connected to an ISDN switch, the multiple protocols are automatically tested one-at-a-time until one is found by which a successful connection to the switch may be made, or until all fail. In the event a successful connection is made, that protocol in use at the time of the successful connection is selected for continued use. In the event that all preprogrammed protocols fail, a user is offered an input mechanism whereby an alternative protocol selection may be entered for trial.

REFERENCES:
patent: 4841561 (1989-06-01), Hill
patent: 4953210 (1990-08-01), McGlynn et al.
patent: 5517646 (1996-05-01), Piccirillo et al.
patent: 5521965 (1996-05-01), D'Alessio et al.
patent: 5612975 (1997-03-01), Becker et al.
Chirayil et al. Modem IC Supports Three 1200 BPS Standards IEEE Transactions on Consumer Electronics vol. CE-31 No. 3 (1985).

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