EP1121786A4 - Fast dtmf identification - Google Patents

Fast dtmf identification

Info

Publication number
EP1121786A4
EP1121786A4 EP99941106A EP99941106A EP1121786A4 EP 1121786 A4 EP1121786 A4 EP 1121786A4 EP 99941106 A EP99941106 A EP 99941106A EP 99941106 A EP99941106 A EP 99941106A EP 1121786 A4 EP1121786 A4 EP 1121786A4
Authority
EP
European Patent Office
Prior art keywords
fast
dtmf identification
identification
fast dtmf
dtmf
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.)
Withdrawn
Application number
EP99941106A
Other languages
German (de)
French (fr)
Other versions
EP1121786A1 (en
Inventor
Edward Morgan
Zoran Mladenovic
Piyush Patel
Qin Su
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.)
Telogy Networks Inc
Original Assignee
Telogy Networks 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 Telogy Networks Inc filed Critical Telogy Networks Inc
Publication of EP1121786A1 publication Critical patent/EP1121786A1/en
Publication of EP1121786A4 publication Critical patent/EP1121786A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/64—Hybrid switching systems
    • H04L12/6418—Hybrid transport
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • 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
    • H04M7/1295—Details of dual tone multiple frequency signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/64—Hybrid switching systems
    • H04L12/6418—Hybrid transport
    • H04L2012/6475—N-ISDN, Public Switched Telephone Network [PSTN]
EP99941106A 1999-08-12 1999-08-13 Fast dtmf identification Withdrawn EP1121786A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US37420399A 1999-08-12 1999-08-12
US374203 1999-08-12
PCT/US1999/018401 WO2001013586A1 (en) 1999-08-12 1999-08-13 Fast dtmf identification

Publications (2)

Publication Number Publication Date
EP1121786A1 EP1121786A1 (en) 2001-08-08
EP1121786A4 true EP1121786A4 (en) 2007-05-30

Family

ID=23475770

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99941106A Withdrawn EP1121786A4 (en) 1999-08-12 1999-08-13 Fast dtmf identification

Country Status (4)

Country Link
EP (1) EP1121786A4 (en)
JP (1) JP2003507933A (en)
AU (1) AU5482499A (en)
WO (1) WO2001013586A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7035293B2 (en) 2001-04-18 2006-04-25 Broadcom Corporation Tone relay
US20030194082A1 (en) 2002-04-15 2003-10-16 Eli Shoval Method and apparatus for transmitting signaling tones over a packet switched network
CN102790958B (en) * 2012-06-29 2016-03-30 华为终端有限公司 A kind of method of command transmitting and device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5666357A (en) * 1995-03-23 1997-09-09 Hughes Electronics DTMF tone passer in a voice communication system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1268570A (en) * 1987-08-14 1990-05-01 Melvin J. Roberts Telephone tone detector
US5295178A (en) * 1990-12-03 1994-03-15 Ericsson Ge Mobile Communications Inc. Digital signal processor for radio base station
US5721729A (en) * 1996-01-24 1998-02-24 Klingman; Edwin E. Universal input call processing system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5666357A (en) * 1995-03-23 1997-09-09 Hughes Electronics DTMF tone passer in a voice communication system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO0113586A1 *

Also Published As

Publication number Publication date
AU5482499A (en) 2001-03-13
JP2003507933A (en) 2003-02-25
WO2001013586A1 (en) 2001-02-22
EP1121786A1 (en) 2001-08-08

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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RIN1 Information on inventor provided before grant (corrected)

Inventor name: SU, QIN

Inventor name: PATEL, PIYUSH

Inventor name: MLADENOVIC, ZORAN

Inventor name: MORGAN, EDWARD

A4 Supplementary search report drawn up and despatched

Effective date: 20070427

RIC1 Information provided on ipc code assigned before grant

Ipc: H04L 12/64 20060101ALI20070423BHEP

Ipc: G05B 23/02 20060101ALI20070423BHEP

Ipc: H04J 3/12 20060101ALI20070423BHEP

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Effective date: 20070301