CA2053594A1 - Communication system having isdn (integrated services digital network) signaling capability - Google Patents

Communication system having isdn (integrated services digital network) signaling capability

Info

Publication number
CA2053594A1
CA2053594A1 CA2053594A CA2053594A CA2053594A1 CA 2053594 A1 CA2053594 A1 CA 2053594A1 CA 2053594 A CA2053594 A CA 2053594A CA 2053594 A CA2053594 A CA 2053594A CA 2053594 A1 CA2053594 A1 CA 2053594A1
Authority
CA
Canada
Prior art keywords
protocol
local
control unit
communications
integrated services
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2053594A
Other languages
French (fr)
Other versions
CA2053594C (en
Inventor
Albert D. Baker
Wayne D. Farmer
Richard E. Henderson
Jerry S. Weltman
Albert V. Toy
Thomas C. Prewitt
Mary Elise Ricker
David Bruce Rucinski
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
Original Assignee
American Telephone and Telegraph Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by American Telephone and Telegraph Co Inc filed Critical American Telephone and Telegraph Co Inc
Priority to CA002173374A priority Critical patent/CA2173374C/en
Publication of CA2053594A1 publication Critical patent/CA2053594A1/en
Application granted granted Critical
Publication of CA2053594C publication Critical patent/CA2053594C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/40—Network security protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
    • H04Q11/0435—Details
    • H04Q11/0457—Connection protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/216—Code signals; Framing (not synchronizing)
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/22—PBX

Abstract

A communications system operates compatibly with a public or private switching network using a Q.931 protocol for basic rate ISDN (Integrated Services Digital Network) communications. Communications between a control unit and station terminals of the system use a local protocol which is a modification of the Q.931 protocol. This local protocol includes one segment including the mandatory elements of the Q.931 protocol and a second segment derived by converting the optional elements of the Q.931 protocol into a local codeset which controls the user interface circuits at each station terminal. The local protocol enables call control between the control unit and each station terminal to be managed on a bearer channel basis while call control between the system and the network is managed on a call appearance basis using the standard Q.931 protocol. The local protocol provides for communicating line selection and feature activation commands from the terminal to the control unit, using simple button commands.
CA002053594A 1990-11-21 1991-10-16 Communication system having isdn (integrated services digital network) signaling capability Expired - Fee Related CA2053594C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002173374A CA2173374C (en) 1990-11-21 1991-10-16 Communication system having isdn (integrated services digital network) signaling capability

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/616,961 US5278972A (en) 1990-11-21 1990-11-21 Communication system for converting ISDN signaling protocol between local and public network having first group of mandatory elements and second group of non-mandatory elements
US616,961 1990-11-21

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA002173374A Division CA2173374C (en) 1990-11-21 1991-10-16 Communication system having isdn (integrated services digital network) signaling capability

Publications (2)

Publication Number Publication Date
CA2053594A1 true CA2053594A1 (en) 1992-05-22
CA2053594C CA2053594C (en) 1999-03-09

Family

ID=24471706

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002053594A Expired - Fee Related CA2053594C (en) 1990-11-21 1991-10-16 Communication system having isdn (integrated services digital network) signaling capability

Country Status (7)

Country Link
US (1) US5278972A (en)
EP (1) EP0487234B1 (en)
JP (1) JPH0720153B2 (en)
KR (1) KR0126461B1 (en)
CA (1) CA2053594C (en)
DE (1) DE69126402T2 (en)
HK (1) HK1002137A1 (en)

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US5991301A (en) * 1994-05-05 1999-11-23 Sprint Communications Co. L.P. Broadband telecommunications system
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US6631133B1 (en) * 1994-05-05 2003-10-07 Sprint Communications Company L.P. Broadband telecommunications system
US5920562A (en) * 1996-11-22 1999-07-06 Sprint Communications Co. L.P. Systems and methods for providing enhanced services for telecommunication call
US5926482A (en) * 1994-05-05 1999-07-20 Sprint Communications Co. L.P. Telecommunications apparatus, system, and method with an enhanced signal transfer point
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US5867669A (en) * 1995-07-03 1999-02-02 General Electric Company Apparatus and method for upgrading communication functions
US5996019A (en) * 1995-07-19 1999-11-30 Fujitsu Network Communications, Inc. Network link access scheduling using a plurality of prioritized lists containing queue identifiers
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US6002689A (en) * 1996-11-22 1999-12-14 Sprint Communications Co. L.P. System and method for interfacing a local communication device
US6667982B2 (en) 1996-11-22 2003-12-23 Sprint Communications Company, L.P. Broadband telecommunications system interface
US5953407A (en) * 1996-12-05 1999-09-14 Nortel Networks Corporation Distinctive ringing and distinctive call-waiting tones in an ISDN
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KR100222433B1 (en) 1997-02-28 1999-10-01 윤종용 Configuration method of network interfacing circuits in isdn key telephone system
AU5831398A (en) * 1997-04-24 1998-10-29 Motorola, Inc. Method and apparatus for supporting ISDN feature phones in hybrid fiber coaxial network
US6178170B1 (en) 1997-05-13 2001-01-23 Sprint Communications Company, L. P. System and method for transporting a call
US6418461B1 (en) * 1997-10-06 2002-07-09 Mci Communications Corporation Intelligent call switching node in an intelligent distributed network architecture
US5938735A (en) * 1997-10-21 1999-08-17 Ricoh Company, Ltd. System for establishing optimized ISDN communication by identifying common communication attributes of destination and source terminals prior to establishing communication link therebetween
US6714217B2 (en) 1998-12-18 2004-03-30 Sprint Communication Company, L.P. System and method for providing a graphical user interface to, for building, and/or for monitoring a telecommunication network
US6888833B1 (en) * 1998-12-22 2005-05-03 Sprint Communications Company L.P. System and method for processing call signaling
US7079530B1 (en) * 1999-02-25 2006-07-18 Sprint Communications Company L.P. System and method for caching toll free number information
US7103068B1 (en) * 1999-05-04 2006-09-05 Sprint Communication Company L.P. System and method for configuring bandwidth transmission rates for call connections
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US6816497B1 (en) * 1999-11-05 2004-11-09 Sprint Communications Company, L.P. System and method for processing a call
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US6785377B1 (en) * 2000-01-19 2004-08-31 Sprint Communications Company L.P. Data calls using both constant bit rate and variable bit rate connections
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Also Published As

Publication number Publication date
KR920011141A (en) 1992-06-27
US5278972A (en) 1994-01-11
DE69126402D1 (en) 1997-07-10
EP0487234B1 (en) 1997-06-04
JPH04290341A (en) 1992-10-14
EP0487234A3 (en) 1993-05-05
JPH0720153B2 (en) 1995-03-06
KR0126461B1 (en) 1997-12-26
CA2053594C (en) 1999-03-09
DE69126402T2 (en) 1997-12-18
EP0487234A2 (en) 1992-05-27
HK1002137A1 (en) 1998-07-31

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed