CA2216294C - Interface a deux ports pour systeme automatise de communications personnelles multifonctionnel - Google Patents

Interface a deux ports pour systeme automatise de communications personnelles multifonctionnel Download PDF

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Publication number
CA2216294C
CA2216294C CA002216294A CA2216294A CA2216294C CA 2216294 C CA2216294 C CA 2216294C CA 002216294 A CA002216294 A CA 002216294A CA 2216294 A CA2216294 A CA 2216294A CA 2216294 C CA2216294 C CA 2216294C
Authority
CA
Canada
Prior art keywords
data
voice
telephone line
circuit
telephone
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.)
Expired - Fee Related
Application number
CA002216294A
Other languages
English (en)
Other versions
CA2216294A1 (fr
Inventor
Jeffrey P. Davis
Raghu Sharma
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.)
Multi Tech Systems Inc
Original Assignee
Multi Tech Systems 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
Priority claimed from US08/161,915 external-priority patent/US5453986A/en
Application filed by Multi Tech Systems Inc filed Critical Multi Tech Systems Inc
Publication of CA2216294A1 publication Critical patent/CA2216294A1/fr
Application granted granted Critical
Publication of CA2216294C publication Critical patent/CA2216294C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres
    • H04M7/0024—Services and arrangements where telephone services are combined with data services
    • H04M7/0057—Services where the data services network provides a telephone service in addition or as an alternative, e.g. for backup purposes, to the telephone service provided by the telephone services network
    • 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
    • H04M7/128—Details of addressing, directories or routing tables
    • 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
    • H04M7/129—Details of providing call progress tones or announcements
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Engineering & Computer Science (AREA)
  • Telephonic Communication Services (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
CA002216294A 1993-12-03 1994-06-28 Interface a deux ports pour systeme automatise de communications personnelles multifonctionnel Expired - Fee Related CA2216294C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/161,915 US5453986A (en) 1993-01-08 1993-12-03 Dual port interface for a computer-based multifunction personal communication system
US08/161,915 1993-12-03
CA002126953A CA2126953C (fr) 1993-12-03 1994-06-28 Interface a deux ports pour systeme de communication personnel multifonction informatise

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002126953A Division CA2126953C (fr) 1993-12-03 1994-06-28 Interface a deux ports pour systeme de communication personnel multifonction informatise

Publications (2)

Publication Number Publication Date
CA2216294A1 CA2216294A1 (fr) 1995-06-04
CA2216294C true CA2216294C (fr) 2000-05-09

Family

ID=31716344

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002216294A Expired - Fee Related CA2216294C (fr) 1993-12-03 1994-06-28 Interface a deux ports pour systeme automatise de communications personnelles multifonctionnel

Country Status (1)

Country Link
CA (1) CA2216294C (fr)

Also Published As

Publication number Publication date
CA2216294A1 (fr) 1995-06-04

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed