GB971602A - Improvements in or relating to automatic telephone systems - Google Patents

Improvements in or relating to automatic telephone systems

Info

Publication number
GB971602A
GB971602A GB1917462A GB1917462A GB971602A GB 971602 A GB971602 A GB 971602A GB 1917462 A GB1917462 A GB 1917462A GB 1917462 A GB1917462 A GB 1917462A GB 971602 A GB971602 A GB 971602A
Authority
GB
United Kingdom
Prior art keywords
relay
diversion
line
over
srg
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
GB1917462A
Inventor
Leslie James Browell
Henry Anthony Fletcher
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.)
Automatic Telephone and Electric Co Ltd
Original Assignee
Automatic Telephone and Electric 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 Automatic Telephone and Electric Co Ltd filed Critical Automatic Telephone and Electric Co Ltd
Priority to GB1917462A priority Critical patent/GB971602A/en
Publication of GB971602A publication Critical patent/GB971602A/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)
  • Interface Circuits In Exchanges (AREA)

Abstract

971,602. Automatic telephone exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. April 8, 1963 [May 18, 1962], No. 19174/62. Heading H4K. In an exchange, particularly one of the so called self-steering kind described in Specification 890,235, the line circuit SLC of each subscriber who is given an incoming call diversion facility is associated at the IDF with an individual relay group SRG which stores the number of the line to which calls are to be diverted. To establish the diversion condition, the subscriber dials from any substation, not necessarily one connected to the same exchange, first a code to obtain access over AP to a dialling-in group DRG and then a secret code to connect to the appropriate relay group SRG. He then dials the number of the diversion line which normally comprises seven digits and is repeated to a store DNS. Relay DS energizes and DRG is released when the caller clears. When an incoming call to the line circuit SLC is marked over MKR, relay TM energizes and a marking over MP controls the connection to SLC which is further extended over a feedbridge TB, the ringing being tripped, to an ex-directory line circuit XSLC. A fresh call is thus originated and is set up under the control of a common sender SDR which receives the digits denoting the diversion line from DNS. Relay TM releases when the call is cleared. To remove the diversion condition the subscriber dials the codes mentioned above to connect to SRG, and a cancel signal is applied to the store DNS, relay DS being released. Specification 890,235 is referred to.
GB1917462A 1962-05-18 1962-05-18 Improvements in or relating to automatic telephone systems Expired GB971602A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1917462A GB971602A (en) 1962-05-18 1962-05-18 Improvements in or relating to automatic telephone systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1917462A GB971602A (en) 1962-05-18 1962-05-18 Improvements in or relating to automatic telephone systems

Publications (1)

Publication Number Publication Date
GB971602A true GB971602A (en) 1964-09-30

Family

ID=10124977

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1917462A Expired GB971602A (en) 1962-05-18 1962-05-18 Improvements in or relating to automatic telephone systems

Country Status (1)

Country Link
GB (1) GB971602A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3485957A (en) * 1966-10-12 1969-12-23 Stromberg Carlson Corp Call forwarding arrangement
US3673341A (en) * 1967-05-12 1972-06-27 Siemens Ag Call re-routing system for telephone installations

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3485957A (en) * 1966-10-12 1969-12-23 Stromberg Carlson Corp Call forwarding arrangement
US3673341A (en) * 1967-05-12 1972-06-27 Siemens Ag Call re-routing system for telephone installations

Similar Documents

Publication Publication Date Title
GB1288917A (en)
GB1521127A (en) Telecommunication systems
ES373468A1 (en) Telephone switching circuit with call-waiting service
GB1271548A (en) A communication system
GB1243874A (en) Improvements in or relating to signalling systems
GB971602A (en) Improvements in or relating to automatic telephone systems
GB1066589A (en) Telephone switching systems
GB1030289A (en) Arrangements in telephone exchanges for the provision of special services such as diverting calls for absent subscribers
GB1099697A (en) Improvements in or relating to private branch exchange telephone switching systems
US3320367A (en) Telephone line circuit
GB1167764A (en) Telephone Exchange
GB1060720A (en) Telephone switching systems
US2338997A (en) Communication system
GB1061162A (en) Improvements in or relating to p.a.b.x. telephone systems
GB1115307A (en) Telephone systems
GB1084099A (en)
GB1082734A (en) Land-to-mobile telephone link
GB1074604A (en) Automatic telephone equipment
GB1265084A (en)
GB1218344A (en) Improvements in or relating to private telephone exchanges
GB1480221A (en) Telephone intercommunication systems
GB991667A (en) Improvements in or relating to telephone systems
GB1043839A (en) Method to mark calls in telephone connections, equipped with automatic call transfer
GB1386895A (en) Computer-controlled telecommunications exchange systems
GB1131129A (en) Improvements in or relating to telecommunications exchange systems