NO20022018D0 - Automatic switching system between analogue and IP telephony - Google Patents

Automatic switching system between analogue and IP telephony

Info

Publication number
NO20022018D0
NO20022018D0 NO20022018A NO20022018A NO20022018D0 NO 20022018 D0 NO20022018 D0 NO 20022018D0 NO 20022018 A NO20022018 A NO 20022018A NO 20022018 A NO20022018 A NO 20022018A NO 20022018 D0 NO20022018 D0 NO 20022018D0
Authority
NO
Norway
Prior art keywords
telephone
analogue
network
connection
power failure
Prior art date
Application number
NO20022018A
Other languages
Norwegian (no)
Other versions
NO20022018L (en
Inventor
Lennart Wilhelmsson
Original Assignee
Telia Ab
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 Telia Ab filed Critical Telia Ab
Publication of NO20022018D0 publication Critical patent/NO20022018D0/en
Publication of NO20022018L publication Critical patent/NO20022018L/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/102—Gateways
    • H04L65/1023—Media gateways
    • H04L65/1026—Media gateways at the edge
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/102—Gateways
    • H04L65/1033—Signalling gateways
    • H04L65/1036—Signalling gateways at the edge
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/253—Telephone sets using digital voice transmission
    • H04M1/2535—Telephone sets using digital voice transmission adapted for voice communication over an Internet Protocol [IP] network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/71—Substation extension arrangements
    • H04M1/715—Substation extension arrangements using two or more extensions per line
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres
    • H04M7/12—Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal
    • H04M7/1205—Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal where the types of switching equipement comprises PSTN/ISDN equipment and switching equipment of networks other than PSTN/ISDN, e.g. Internet Protocol networks
    • H04M7/125—Details of gateway equipment

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Telephonic Communication Services (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Devices For Supply Of Signal Current (AREA)

Abstract

The invention is a system for switching an analogue telephone, or telephone network, between an IP connection and a CSN connection. A switch is set to automatically connect the analogue telephone, or telephone network, to a default connection in the absence of a switching signal initiated from a telephone handset. If an appropriate switching signal is detected the switch connects the analogue telephone, or telephone network, to a non-default connection. Typically the default connection is the circuit switched network and the non-default connection is the IP network. The switching signal may be a dialled prefix digit. A power failure relay may be provided to detect a power failure and, on detection of a power failure, to connect the analogue telephone, or telephone network, to the circuit switched network.
NO20022018A 1999-11-01 2002-04-29 Automatic switching system between analogue and IP telephony NO20022018L (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9903949A SE517556C2 (en) 1999-11-01 1999-11-01 Power failure detection for analogue telephone with IP and CSN connection
PCT/SE2000/002041 WO2001033819A1 (en) 1999-11-01 2000-10-20 A system for automatically switching between analogue and ip telephony

Publications (2)

Publication Number Publication Date
NO20022018D0 true NO20022018D0 (en) 2002-04-29
NO20022018L NO20022018L (en) 2002-06-25

Family

ID=20417568

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20022018A NO20022018L (en) 1999-11-01 2002-04-29 Automatic switching system between analogue and IP telephony

Country Status (4)

Country Link
EP (1) EP1232638A1 (en)
NO (1) NO20022018L (en)
SE (1) SE517556C2 (en)
WO (1) WO2001033819A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2441370A (en) * 2006-08-16 2008-03-05 Inventec Multimedia & Telecom Composite internet phone device
GB0713784D0 (en) * 2007-07-16 2007-08-22 Cellfire Security Technologies Communication system trigger

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2711468B1 (en) * 1993-10-19 1996-01-05 Ouest Standard Telematique Sa Interconnection device between two remote local networks, and corresponding interconnection method.
US5559855A (en) * 1994-11-29 1996-09-24 Lucent Technologies Inc. System and method for recognizing and routing telephone calls involving hearing or speech impaired persons
FR2748172B1 (en) * 1996-04-24 1998-10-02 Alcatel Business Systems PROTOCOL ADAPTATION EQUIPMENT FOR TELEPHONE STATION AND STATION EQUIPPED WITH SUCH EQUIPMENT
WO1999009716A1 (en) * 1997-08-19 1999-02-25 Yugen Kaisha Ls Net Method of communicating with subscriber devices through a global communication network

Also Published As

Publication number Publication date
WO2001033819A1 (en) 2001-05-10
EP1232638A1 (en) 2002-08-21
SE9903949D0 (en) 1999-11-01
NO20022018L (en) 2002-06-25
SE9903949L (en) 2001-05-02
SE517556C2 (en) 2002-06-18

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Legal Events

Date Code Title Description
FC2A Withdrawal, rejection or dismissal of laid open patent application