WO2001020886A1 - Procede et dispositif pour la selection d'une porteuse longue distance - Google Patents

Procede et dispositif pour la selection d'une porteuse longue distance Download PDF

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Publication number
WO2001020886A1
WO2001020886A1 PCT/US2000/040897 US0040897W WO0120886A1 WO 2001020886 A1 WO2001020886 A1 WO 2001020886A1 US 0040897 W US0040897 W US 0040897W WO 0120886 A1 WO0120886 A1 WO 0120886A1
Authority
WO
WIPO (PCT)
Prior art keywords
long distance
code
distance carrier
telephone
switch
Prior art date
Application number
PCT/US2000/040897
Other languages
English (en)
Inventor
Samuel L. Thomasson
Original Assignee
Acoustic Technologies, 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 Acoustic Technologies, Inc. filed Critical Acoustic Technologies, Inc.
Publication of WO2001020886A1 publication Critical patent/WO2001020886A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/27—Devices whereby a plurality of signals may be stored simultaneously
    • H04M1/274—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc
    • H04M1/2745—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc using static electronic memories, e.g. chips
    • H04M1/27485—Appending a prefix to or inserting a pause into a dialling sequence

Definitions

  • This invention relates to telephone dialing systems and, in particular, to a method and apparatus for automatically selecting a long distance carrier
  • Many automatic dialing systems are known in the art, including "speed dialing," wherein a particular sequence of digits is stored in memory and associated with a single key for retrieval and automatic dialing
  • Many software programs that keep track of business or social contacts are capable of automatically dialing a number looked up by a user These programs dial whatever information has been stored by a user and can dial any number of digits
  • a further object of the invention is to provide a method and apparatus for automatically recognizing long distance toll calls and inserting a long distance carrier selection code in the data from the telephone
  • Another object of the invention is to provide a system that can be implemented within a telephone, as a plug-in addition using modular jacks, or as an addition to the wiring in a household for serving all interior telephones
  • a further object of the invention is to provide an apparatus and method for automatically inserting a long distance carrier selection code in the data from a cellular telephone or a wired telephone
  • FIG 1 is a flowchart of a method in accordance with a preferred embodiment of the invention.
  • FIG 2 is a flowchart of a method in accordance with an alternative embodiment of the invention.
  • FIG 3 is a block diagram of apparatus constructed in accordance with another aspect of the invention.
  • FIG 1 is a flowchart of a method in accordance with a preferred embodiment of the invention in which the selection of long distance carrier is fixed Specifically, the access number of a long distance carrier is stored in permanent memory within the telephone.
  • Permanent memory is memory that by its nature is permanent, e.g., read only memory (ROM), or memory that is alterable but the means for changing the data is absent; e.g., erasable programmable read only memory (EPROM) without the voltages or the logic necessary to effect change
  • ROM read only memory
  • EPROM erasable programmable read only memory
  • the digits are stored in memory, as indicated in step 11, and analyzed for content. Specifically, the first digit is checked to see if it is "1". If so, then it is assumed that a long distance call is being made If the first digit is not "1", then a local call is assumed and the process skips to the last step, sending the stored number.
  • dialed numbers including these "area codes” must not have a code for a long distance carrier automatically inserted into the data stream from a telephone Steps 14 and 15 check for these area codes and, if either is found, the program skips to the last step.
  • the access code for a particular long distance carrier is then sent; e.g., 10-10-577, as indicated in step 17. Finally, the dialed number is sent, as indicated in step 19.
  • FIG. 2 differs from FIG 1 in the addition of step 21, wherein the dialed number is inspected for a defeat code, and in reversing the first two steps.
  • the process is slightly faster than if the entire dialed number is stored prior to analysis. On telephones that display the dialed digits and other information, the dialed number is already stored and the process begins with inspecting the dialed number for a long distance code
  • a defeat code e.g. 1#3*4
  • the process skips to the last step, sending only the dialed number.
  • the automatic selection can also be defeated by a switch actuated by the user Step 21 in FIG 2 would then be checking an I/O port to determine whether the switch were open or closed
  • FIG 3 illustrates the electronics within a telephone as modified in accordance with another aspect of the invention
  • Microprocessor 31 is coupled to ROM 32, RAM 33, and I/O circuit 34 These elements are separate circuits or are incorporated into microprocessor 31
  • Display 36, keyboard 37, and telephone operations circuit 38 are particularly adapted to provide telephone functions Circuit 38, for example, provides tone encoding and decoding, among other functions
  • switch 41 is coupled to one or more input pins of I/O circuit 34
  • switch 41 is a single pole, triple throw switch wherein each throw is coupled to a pull-up resistor Switch 41 is operated by a user to indicate which one of several long distance carriers to use for a call Without switch 41, input 42 is held above ground by resistor 43 coupled between input 42 and a source of positive DC voltage, typically indicating a logic one
  • input 42 is grounded, typically indicating a logic zero
  • the user can choose among three carriers by grounding the appropriate input.
  • the user can choose among three carriers by grounding the appropriate input.
  • the invention thus provides a method and apparatus for automatically recognizing long distance toll calls and inserting a long distance carrier selection code in the data from the telephone to a local switching network
  • the invention can be implemented within a telephone, as a plug-in addition using modular jacks, or as an addition to the wiring in a household for serving all interior telephones
  • Any type of telephone, e g cellular or wired, can include a circuit constructed in accordance with the invention
  • a binary coded switch can be used instead of switch 41
  • the foregoing description applies to domestic telephone calls only
  • the number of digits in the defeat code is a matter of choice.
  • the only criterion for a defeat code is that it be unique.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Meter Arrangements (AREA)

Abstract

Selon l'invention, un dispositif logé dans un téléphone détecte un préfixe longue distance, enregistre le numéro composé (11), envoie un code pour une porteuse longue distance (17), puis envoie le numéro composé à la porteuse d'échange local (18). Ce dispositif détecte également des codes de zones sans frais (14, 15) sur le numéro enregistré, et le numéro composé est envoyé sans le code lorsqu'un code de zone sans frais est détecté. L'insertion automatique peut être invalidée par inclusion d'un code particulier dans le numéro composé, ou par un commutateur d'invalidation sur le téléphone.
PCT/US2000/040897 1999-09-14 2000-09-14 Procede et dispositif pour la selection d'une porteuse longue distance WO2001020886A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US39526099A 1999-09-14 1999-09-14
US09/395,260 1999-09-14

Publications (1)

Publication Number Publication Date
WO2001020886A1 true WO2001020886A1 (fr) 2001-03-22

Family

ID=23562310

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/040897 WO2001020886A1 (fr) 1999-09-14 2000-09-14 Procede et dispositif pour la selection d'une porteuse longue distance

Country Status (1)

Country Link
WO (1) WO2001020886A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5420914A (en) * 1994-02-28 1995-05-30 U S West Technologies, Inc. System and method for real time carrier selection
US5425085A (en) * 1994-03-18 1995-06-13 Rates Technology Inc. Least cost routing device for separate connection into phone line
US5550915A (en) * 1993-07-02 1996-08-27 Lucent Technologies, Inc. Apparatus for use in completing telephone calls
US5878122A (en) * 1997-02-07 1999-03-02 Northern Telecom Limited Long distance service bureau

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5550915A (en) * 1993-07-02 1996-08-27 Lucent Technologies, Inc. Apparatus for use in completing telephone calls
US5420914A (en) * 1994-02-28 1995-05-30 U S West Technologies, Inc. System and method for real time carrier selection
US5425085A (en) * 1994-03-18 1995-06-13 Rates Technology Inc. Least cost routing device for separate connection into phone line
US5425085C1 (en) * 1994-03-18 2001-10-09 Rates Technology Inc Least control routing device for separate connection into phone line
US5878122A (en) * 1997-02-07 1999-03-02 Northern Telecom Limited Long distance service bureau

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