IT1169897B - Circuito d'attesa di un rele' d'aggancio per apparecchio telefonico - Google Patents

Circuito d'attesa di un rele' d'aggancio per apparecchio telefonico

Info

Publication number
IT1169897B
IT1169897B IT23434/83A IT2343483A IT1169897B IT 1169897 B IT1169897 B IT 1169897B IT 23434/83 A IT23434/83 A IT 23434/83A IT 2343483 A IT2343483 A IT 2343483A IT 1169897 B IT1169897 B IT 1169897B
Authority
IT
Italy
Prior art keywords
telephone
waiting circuit
hook relay
relay
hook
Prior art date
Application number
IT23434/83A
Other languages
English (en)
Other versions
IT8323434A0 (it
Inventor
Gary Grantland
Eduard F B Boeckmann
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 IT8323434A0 publication Critical patent/IT8323434A0/it
Application granted granted Critical
Publication of IT1169897B publication Critical patent/IT1169897B/it

Links

Classifications

    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Devices For Supply Of Signal Current (AREA)
IT23434/83A 1982-11-01 1983-10-25 Circuito d'attesa di un rele' d'aggancio per apparecchio telefonico IT1169897B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/437,932 US4435622A (en) 1982-11-01 1982-11-01 Latching relay hold circuit for a telephone instrument

Publications (2)

Publication Number Publication Date
IT8323434A0 IT8323434A0 (it) 1983-10-25
IT1169897B true IT1169897B (it) 1987-06-03

Family

ID=23738523

Family Applications (1)

Application Number Title Priority Date Filing Date
IT23434/83A IT1169897B (it) 1982-11-01 1983-10-25 Circuito d'attesa di un rele' d'aggancio per apparecchio telefonico

Country Status (4)

Country Link
US (1) US4435622A (it)
BE (1) BE898108A (it)
CA (1) CA1203332A (it)
IT (1) IT1169897B (it)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4658097A (en) * 1983-05-18 1987-04-14 Dictaphone Corporation Remote terminal for use with central dictation apparatus
JPS6113523A (ja) * 1984-06-29 1986-01-21 株式会社東芝 電話機におけるラツチング・リレ−駆動回路
US4899381A (en) * 1989-04-07 1990-02-06 Gte Hawaiian Telephone Company Incorporated Single-line telephone hold circuit
US5859906A (en) * 1996-11-19 1999-01-12 Thomson Consumer Electronics, Inc. Telephone switch hook interface circuit
SE511963C2 (sv) 1997-04-23 1999-12-20 Ericsson Telefon Ab L M Anordning och förfarande för bestämning av linjespänning i en abonnentlinjekrets
US6882716B2 (en) * 2001-03-28 2005-04-19 Intel Corporation Local control of call features in a telephone system
US9071945B1 (en) * 2007-09-17 2015-06-30 Google Inc. Caller feedback in mobile devices

Also Published As

Publication number Publication date
BE898108A (fr) 1984-02-15
IT8323434A0 (it) 1983-10-25
CA1203332A (en) 1986-04-15
US4435622A (en) 1984-03-06

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