Method for regurating call congestion and ISDN exchanger for per

Details Method for regurating call congestion and ISDN exchanger for per Method for regurating call congestion and ISDN exchanger for per

1995-06-14

1998-06-02

Tsang, Fan S.

Telephonic communications

Audio message storage, retrieval, or synthesis

Multilingual system or operation

379134, 370230, 370522, H04M 164

Patent

active

057612749

ABSTRACT:
An ISDN exchanger can reduce processing of layer 3 on layer 2 processing to the utmost, and control call congestion with only the layer 2 processing, practically. The ISDN exchanger for regulating call congestion includes a call processing means for processing a call control data or message in an ISDN system as internal processing and a regulating means provided at the previous stage of the call processing means for judging whether or not the number of receiving calls exceeds a prescribed value, and regulating call set up requests without the internal processing when the number of received call set up requests exceeds the prescribed value.

REFERENCES:
patent: 5283788 (1994-02-01), Morita et al.
patent: 5357504 (1994-10-01), Siegmund
patent: 5398246 (1995-03-01), Fujioka

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