SE9903949L - Enhancements to, or with regard to, telephony - Google Patents

Enhancements to, or with regard to, telephony

Info

Publication number
SE9903949L
SE9903949L SE9903949A SE9903949A SE9903949L SE 9903949 L SE9903949 L SE 9903949L SE 9903949 A SE9903949 A SE 9903949A SE 9903949 A SE9903949 A SE 9903949A SE 9903949 L SE9903949 L SE 9903949L
Authority
SE
Sweden
Prior art keywords
telephone
network
connection
analogue
power failure
Prior art date
Application number
SE9903949A
Other languages
Swedish (sv)
Other versions
SE9903949D0 (en
SE517556C2 (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
Priority to SE9903949A priority Critical patent/SE517556C2/en
Publication of SE9903949D0 publication Critical patent/SE9903949D0/en
Priority to EP00973326A priority patent/EP1232638A1/en
Priority to PCT/SE2000/002041 priority patent/WO2001033819A1/en
Publication of SE9903949L publication Critical patent/SE9903949L/en
Priority to NO20022018A priority patent/NO20022018L/en
Publication of SE517556C2 publication Critical patent/SE517556C2/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.
SE9903949A 1999-11-01 1999-11-01 Power failure detection for analogue telephone with IP and CSN connection SE517556C2 (en)

Priority Applications (4)

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
EP00973326A EP1232638A1 (en) 1999-11-01 2000-10-20 A system for automatically switching between analogue and ip telephony
PCT/SE2000/002041 WO2001033819A1 (en) 1999-11-01 2000-10-20 A system for automatically switching between analogue and ip telephony
NO20022018A NO20022018L (en) 1999-11-01 2002-04-29 Automatic switching system between analogue and IP telephony

Applications Claiming Priority (1)

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

Publications (3)

Publication Number Publication Date
SE9903949D0 SE9903949D0 (en) 1999-11-01
SE9903949L true SE9903949L (en) 2001-05-02
SE517556C2 SE517556C2 (en) 2002-06-18

Family

ID=20417568

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9903949A SE517556C2 (en) 1999-11-01 1999-11-01 Power failure detection for analogue telephone with IP and CSN connection

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
EP0939522B1 (en) * 1997-08-19 2006-10-04 Yugen Kaisha LS Net Method of communicating with subscriber devices through a global communication network

Also Published As

Publication number Publication date
NO20022018L (en) 2002-06-25
NO20022018D0 (en) 2002-04-29
SE9903949D0 (en) 1999-11-01
SE517556C2 (en) 2002-06-18
WO2001033819A1 (en) 2001-05-10
EP1232638A1 (en) 2002-08-21

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Legal Events

Date Code Title Description
NUG Patent has lapsed