ISDN terminal adapter capable of automatically changing from a p

Details ISDN terminal adapter capable of automatically changing from a p ISDN terminal adapter capable of automatically changing from a p

1994-11-29

1997-01-28

Safourek, Benedict V.

Multiplex communications

Pathfinding or routing

Combined circuit switching and packet switching

370466, 370524, H04J 324

Patent

active

055984118

ABSTRACT:
In an ISDN terminal adapter where both data communication by packet switching and data communication by circuit switching can be established, after data communication by packet switching is established, a time when no response is received is counted. When the time exceeds a definite time, data communication by circuit switching is established instead of data communication by packet switching.

REFERENCES:
patent: 4592048 (1986-05-01), Beckner et al.
patent: 5157662 (1992-10-01), Tadamura et al.
patent: 5204861 (1993-04-01), Wiebe
patent: 5208806 (1993-05-01), Hasegawa
patent: 5231631 (1993-07-01), Buhrke et al.
patent: 5381411 (1995-01-01), Ohno et al.
patent: 5442630 (1995-08-01), Gagliardi et al.

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