GB1259670A - Improvements in or relating to telephone operators desk sets - Google Patents

Improvements in or relating to telephone operators desk sets

Info

Publication number
GB1259670A
GB1259670A GB6140769A GB6140769A GB1259670A GB 1259670 A GB1259670 A GB 1259670A GB 6140769 A GB6140769 A GB 6140769A GB 6140769 A GB6140769 A GB 6140769A GB 1259670 A GB1259670 A GB 1259670A
Authority
GB
United Kingdom
Prior art keywords
keys
dec
relating
legends
telephone operators
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
GB6140769A
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of GB1259670A publication Critical patent/GB1259670A/en
Expired legal-status Critical Current

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
    • H04M3/58—Arrangements for transferring received calls from one subscriber to another; Arrangements affording interim conversations between either the calling or the called party and a third party
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/60—Semi-automatic systems, i.e. in which the numerical selection of the outgoing line is under the control of an operator
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/60—Semi-automatic systems, i.e. in which the numerical selection of the outgoing line is under the control of an operator
    • H04M3/62—Keyboard equipment

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Push-Button Switches (AREA)
  • Telephone Set Structure (AREA)

Abstract

1,259,670. Telephone exchanges. SIEMENS AG. 17 Dec., 1969 [20 Dec., 1968], No. 61407/69. Heading H4K. An operator's desk set includes special service keys which change their function during successive operational sequences, indicators bearing a plurality of legends for each key and illumination means controlled by previous key operations and arranged to illuminate those legends appropriate to the current functions of the keys. As described each legend is on a separate indicator panel. The panels are illuminated by lamps controlled by interconnected relay circuits no details of which are given. Interlocks may be provided to prevent the effective operation of keys not applicable in particular sequences.
GB6140769A 1968-12-20 1969-12-17 Improvements in or relating to telephone operators desk sets Expired GB1259670A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681816145 DE1816145C3 (en) 1968-12-20 1968-12-20 Circuit arrangement for a telephone system with switching devices with keys and display means assigned to the keys

Publications (1)

Publication Number Publication Date
GB1259670A true GB1259670A (en) 1972-01-12

Family

ID=5716961

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6140769A Expired GB1259670A (en) 1968-12-20 1969-12-17 Improvements in or relating to telephone operators desk sets

Country Status (7)

Country Link
BE (1) BE743454A (en)
DE (1) DE1816145C3 (en)
FR (1) FR2026676A1 (en)
GB (1) GB1259670A (en)
LU (1) LU60047A1 (en)
NL (1) NL148213B (en)
SE (1) SE360536B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2154393A (en) * 1984-02-16 1985-09-04 Standard Telephones Cables Ltd Telephone subscriber's apparatus

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2543029C3 (en) * 1975-09-26 1982-09-09 Siemens AG, 1000 Berlin und 8000 München Circuit arrangement for a terminal which controls a large number of functions and can be connected to a telephone system
DE2912034C2 (en) * 1979-03-27 1985-02-21 Siemens AG, 1000 Berlin und 8000 München Indirectly controlled switching system, in particular telephone branch exchange, with a central control unit and an input device that enables dialogue
DE3139501C1 (en) * 1981-09-29 1983-02-24 Siemens AG, 1000 Berlin und 8000 München Digital subscriber telephone with push-button switches to initiate control procedures

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2154393A (en) * 1984-02-16 1985-09-04 Standard Telephones Cables Ltd Telephone subscriber's apparatus

Also Published As

Publication number Publication date
BE743454A (en) 1970-06-19
LU60047A1 (en) 1970-02-18
NL148213B (en) 1975-12-15
DE1816145A1 (en) 1970-06-25
DE1816145B2 (en) 1972-01-20
NL6918530A (en) 1970-06-23
DE1816145C3 (en) 1975-05-07
SE360536B (en) 1973-09-24
FR2026676A1 (en) 1970-09-18

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee