IT1167270B - Circuito elettronico di attesa perfezionato - Google Patents

Circuito elettronico di attesa perfezionato

Info

Publication number
IT1167270B
IT1167270B IT23867/83A IT2386783A IT1167270B IT 1167270 B IT1167270 B IT 1167270B IT 23867/83 A IT23867/83 A IT 23867/83A IT 2386783 A IT2386783 A IT 2386783A IT 1167270 B IT1167270 B IT 1167270B
Authority
IT
Italy
Prior art keywords
perfected
waiting circuit
electronic waiting
electronic
circuit
Prior art date
Application number
IT23867/83A
Other languages
English (en)
Other versions
IT8323867A0 (it
Inventor
Gary Grantland
Hugh S Montgomery
Eduard F B Boeckmann
Larry A Woodworth
Original Assignee
Gte Automatic Electric 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 Gte Automatic Electric Inc filed Critical Gte Automatic Electric Inc
Publication of IT8323867A0 publication Critical patent/IT8323867A0/it
Application granted granted Critical
Publication of IT1167270B publication Critical patent/IT1167270B/it

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/428—Arrangements for placing incoming calls on hold
    • H04M3/4283—Call holding circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/80—Telephone line holding circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
IT23867/83A 1982-11-26 1983-11-24 Circuito elettronico di attesa perfezionato IT1167270B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/444,759 US4440981A (en) 1982-11-26 1982-11-26 Electronic hold circuit

Publications (2)

Publication Number Publication Date
IT8323867A0 IT8323867A0 (it) 1983-11-24
IT1167270B true IT1167270B (it) 1987-05-13

Family

ID=23766232

Family Applications (1)

Application Number Title Priority Date Filing Date
IT23867/83A IT1167270B (it) 1982-11-26 1983-11-24 Circuito elettronico di attesa perfezionato

Country Status (4)

Country Link
US (1) US4440981A (it)
BE (1) BE898305A (it)
CA (1) CA1205230A (it)
IT (1) IT1167270B (it)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4529843A (en) * 1983-08-25 1985-07-16 Gte Business Communication Systems Inc. Subscribers telephone hold circuit with automatic disconnect
US4674118A (en) * 1985-03-25 1987-06-16 Tie/Communications, Inc. Telephone line hold and hold release apparatus
US4742539A (en) * 1985-07-05 1988-05-03 Melita Electronic Labs, Inc. Telephone loop current modulator
US4648109A (en) * 1985-12-16 1987-03-03 Gte Communication Systems Corp. Light emitting diode message waiting lamp circuit
US5285495A (en) * 1991-08-27 1994-02-08 Winbond Electronic Corp. Push-button telephone dialing device with telephone hold function circuit
US6157713A (en) * 1996-04-10 2000-12-05 Industrial Technology Research Institute Telephone hold circuit
US9071945B1 (en) * 2007-09-17 2015-06-30 Google Inc. Caller feedback in mobile devices

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4001520A (en) * 1975-02-20 1977-01-04 Waldman Herbert H Hold circuit for telephones
US4011413A (en) * 1976-01-12 1977-03-08 Gimix, Inc. Hold circuit for telephone
US4093829A (en) * 1977-03-14 1978-06-06 Silberman Robert L Single line telephone hold circuit
US4258232A (en) * 1978-11-06 1981-03-24 Tone Commander Systems, Inc. Line hold circuits
US4365117A (en) * 1980-08-07 1982-12-21 Curtis William A Telephone hold circuit
US4394543A (en) * 1981-06-04 1983-07-19 Lear Siegler, Inc. Telephone line holding circuit
US4387274A (en) * 1981-06-15 1983-06-07 Gti Corporation Hook flash signal actuated telephone control device
US4394544A (en) * 1981-11-09 1983-07-19 Gte Automatic Electric Labs Inc. Line circuit for multiple line telephone

Also Published As

Publication number Publication date
US4440981A (en) 1984-04-03
CA1205230A (en) 1986-05-27
IT8323867A0 (it) 1983-11-24
BE898305A (fr) 1984-03-16

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