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GB221460A - Improvements relating to telephone systems - Google Patents

Improvements relating to telephone systems

Info

Publication number
GB221460A
GB221460A GB1499024A GB1499024A GB221460A GB 221460 A GB221460 A GB 221460A GB 1499024 A GB1499024 A GB 1499024A GB 1499024 A GB1499024 A GB 1499024A GB 221460 A GB221460 A GB 221460A
Authority
GB
United Kingdom
Prior art keywords
controller
register
idle register
switch
circuit
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
GB1499024A
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 Brothers and Co Ltd
Original Assignee
Siemens Brothers and Co Ltd
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 Brothers and Co Ltd filed Critical Siemens Brothers and Co Ltd
Priority to GB1499024A priority Critical patent/GB221460A/en
Publication of GB221460A publication Critical patent/GB221460A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Exchange Systems With Centralized Control (AREA)

Abstract

221,460. Siemens Bros. & Co., Ltd., Berry, J., and Peters, C. L. Jan. 24, 1924. Drawings to Specification. Automatic exchange systems; metering.-In an exchange network in which the initial letters of the name of the wanted exchange are dialled to an idle register-controller which translates them into a routing number, if the calling subscriber commences to dial before an idle register-controller has been engaged, the subsequent seizure of a register-controller is prevented. A busy signal may also be given to the calling party. According to the arrangement described, the circuit of the driving magnet of the switch which hunts for an idle register-controller, extends over wipers of a sequence switch associated with the first selector. If the subscriber commences to dial before the seizure of an idle register-controller, the first relapse of an impulse relay completes a circuit which steps the sequence switch to its next position in which the driving circuit of the hunting switch is opened and busy tone sent to the calling party. The invention is shown as applied to a system which is identical with that described in Specification 217,981. Specification 203,759 also is referred to.
GB1499024A 1924-01-24 1924-01-24 Improvements relating to telephone systems Expired GB221460A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1499024A GB221460A (en) 1924-01-24 1924-01-24 Improvements relating to telephone systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1499024A GB221460A (en) 1924-01-24 1924-01-24 Improvements relating to telephone systems

Publications (1)

Publication Number Publication Date
GB221460A true GB221460A (en) 1924-09-11

Family

ID=10051117

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1499024A Expired GB221460A (en) 1924-01-24 1924-01-24 Improvements relating to telephone systems

Country Status (1)

Country Link
GB (1) GB221460A (en)

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