ISDN D-channel signaling discriminator

Details ISDN D-channel signaling discriminator ISDN D-channel signaling discriminator

1996-11-05

1998-05-05

Olms, Douglas W.

Multiplex communications

Pathfinding or routing

Through a circuit switch

370466, 370469, 370524, H04J 312

Patent

active

057486280

ABSTRACT:
The present invention is a software implementation for the processing of ISDN signaling protocol independent of the equipment type and vendor variations of the CCITT Q.921/Q.931 protocol specification with which it is connected, including at least one layer two filter and at least one layer three filter which are adapted to cooperate together to process ISDN D-channel signals independent of ISDN facility type.

REFERENCES:
patent: 4910729 (1990-03-01), Coffelt et al.
patent: 4979169 (1990-12-01), Almond et al.
patent: 4985887 (1991-01-01), Mizuhara et al.
patent: 4998274 (1991-03-01), Ephraim
patent: 5012466 (1991-04-01), Buhrke et al.
patent: 5012470 (1991-04-01), Shobu et al.
patent: 5062108 (1991-10-01), Bales et al.
patent: 5134611 (1992-07-01), Steinka et al.
patent: 5142528 (1992-08-01), Kobayashi et al.
patent: 5182748 (1993-01-01), Sakata et al.
patent: 5235639 (1993-08-01), Chevalier et al.
patent: 5237569 (1993-08-01), Sekihata et al.
patent: 5251207 (1993-10-01), Abensour et al.
patent: 5278972 (1994-01-01), Baker et al.
patent: 5305312 (1994-04-01), Fornek et al.
patent: 5341418 (1994-08-01), Yoshida
patent: 5425029 (1995-06-01), Hluchyj et al.
patent: 5442630 (1995-08-01), Gagliardi et al.
patent: 5479405 (1995-12-01), Koz et al.
patent: 5483530 (1996-01-01), Davis et al.
patent: 5537417 (1996-07-01), Sharma et al.
patent: 5548710 (1996-08-01), Oono et al.
patent: 5594732 (1997-01-01), Bell et al.
patent: 5621731 (1997-04-01), Dale et al.
patent: 5627827 (1997-05-01), Dale et al.
ISDN--A User'Guide to Services, Applications & Resources in California, Pacific Telesis Group, 1996, Pacific Bell.
CCIT Bluebook, vol. Vi--Digital Subscriber Signalling System No. 1 (DSS 1), Data Link Layer, Recommendations Q.920-Q.921, Cover page, and pages 28, 140 and 141.

Affiliated with

Also associated with

Rating

ISDN D-channel signaling discriminator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with ISDN D-channel signaling discriminator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and ISDN D-channel signaling discriminator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-63193