ISDN terminal, ISDN terminal communication system, and method for controlling ISDN terminals
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United States of America Patent
Stats
-
Aug 23, 1994
Grant Date -
N/A
app pub date -
May 2, 1991
filing date -
May 11, 1990
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A first ISDN terminal transmits a receipt result information report to a second ISDN terminal via a D-channel after the first ISDN terminal receives a data from the second ISDN terminal. The data comprises image information. The image information is transmitted via a B-channel. The receipt result information report indicates a result of receiving of the image information for confirmation by the second ISDN terminal of the receiving at the first ISDN terminal. The D-channel is used for transmitting predetermined protocol information between the ISDN terminals. The predetermined protocol information includes an identification information. The identification information is used for controlling a connection between the ISDN terminals.
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