GB1178695A - Improvements in or relating to Tone-Calling Telephone Systems and Telephone Instruments therefor - Google Patents

Improvements in or relating to Tone-Calling Telephone Systems and Telephone Instruments therefor

Info

Publication number
GB1178695A
GB1178695A GB3445467A GB3445467A GB1178695A GB 1178695 A GB1178695 A GB 1178695A GB 3445467 A GB3445467 A GB 3445467A GB 3445467 A GB3445467 A GB 3445467A GB 1178695 A GB1178695 A GB 1178695A
Authority
GB
United Kingdom
Prior art keywords
tone
relating
telephone
calling
systems
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
Application number
GB3445467A
Inventor
Stephen John Crooks
Robert Andrew Stevenson
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB3445467A priority Critical patent/GB1178695A/en
Priority claimed from GB1822466A external-priority patent/GB1178693A/en
Publication of GB1178695A publication Critical patent/GB1178695A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/04—Supports for telephone transmitters or receivers
    • H04M1/06—Hooks; Cradles
    • H04M1/10—Hooks; Cradles associated with switches operated by magnetic effect due to proximity of receiver or hand-set
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/001—Two-way communication systems between a limited number of parties

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)

Abstract

1,178,695. Intercommunication systems; sub-sets. GENERAL ELECTRIC & ENGLISH ELECTRIC COMPANIES Ltd. 2 June, 1967 [26 April, 1966], No. 34454/67. Divided out of 1,178,693. Headings H4J and H4K. The description is identical to that of Specification 1,178,693, but the claims relate to the provision of a reed relay hook switch in the hand set operated by a magnet in the subset body to reduce the level of a calling tone when the hand set is removed from the rest position on the sub-set body.
GB3445467A 1966-04-26 1966-04-26 Improvements in or relating to Tone-Calling Telephone Systems and Telephone Instruments therefor Expired GB1178695A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3445467A GB1178695A (en) 1966-04-26 1966-04-26 Improvements in or relating to Tone-Calling Telephone Systems and Telephone Instruments therefor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3445467A GB1178695A (en) 1966-04-26 1966-04-26 Improvements in or relating to Tone-Calling Telephone Systems and Telephone Instruments therefor
GB1822466A GB1178693A (en) 1966-04-26 1966-04-26 Improvements in or relating to Carrier Telephony Equipment

Publications (1)

Publication Number Publication Date
GB1178695A true GB1178695A (en) 1970-01-21

Family

ID=26253245

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3445467A Expired GB1178695A (en) 1966-04-26 1966-04-26 Improvements in or relating to Tone-Calling Telephone Systems and Telephone Instruments therefor

Country Status (1)

Country Link
GB (1) GB1178695A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3939311A (en) * 1974-10-23 1976-02-17 Gte Automatic Electric Laboratories Incorporated Muting circuit for subscribers telephone
US4251694A (en) * 1979-08-16 1981-02-17 Western Electric Company, Inc. Tone-ringing circuits and methods for telephone sets

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3939311A (en) * 1974-10-23 1976-02-17 Gte Automatic Electric Laboratories Incorporated Muting circuit for subscribers telephone
US4251694A (en) * 1979-08-16 1981-02-17 Western Electric Company, Inc. Tone-ringing circuits and methods for telephone sets

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