US3341662A - Equipment for operator served calls at an intermediate switching center - Google Patents

Equipment for operator served calls at an intermediate switching center Download PDF

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Publication number
US3341662A
US3341662A US325842A US32584263A US3341662A US 3341662 A US3341662 A US 3341662A US 325842 A US325842 A US 325842A US 32584263 A US32584263 A US 32584263A US 3341662 A US3341662 A US 3341662A
Authority
US
United States
Prior art keywords
equipment
switching center
intermediate switching
connection
circuits
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 - Lifetime
Application number
US325842A
Inventor
Louis J Cerny
Cesareo Orfeo
Robert B Curtis
John G Nightingale
Jr Frederick H Parkinson
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.)
AT&T Corp
Original Assignee
Bell Telephone Laboratories 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 Bell Telephone Laboratories Inc filed Critical Bell Telephone Laboratories Inc
Priority to US325842A priority Critical patent/US3341662A/en
Application granted granted Critical
Publication of US3341662A publication Critical patent/US3341662A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges

Claims (1)

1. IN A SWITCHING SYSTEM FOR ESTABLISHING CONNECTIONS FROM ORIGINATING CIRCUITS TO OTHER CIRCUITS, MEANS IN EACH OF SAID ORIGINATING CIRCUITS RESPONSIVE TO THE RECEIPT OF A SERVICE REQUEST THEREON FOR INITIALLY REQUESTING A NONPRIORITY CONNECTION TO ONE OF SAID OTHER CIRCUITS, SWITCHING MEANS RESPONSIVE TO SAID CONNECTION REQUEST FOR ESTABLISHING SAID CONNECTION ON A NONPRIORITY BASIS, MEANS SUBSEQUENTLY OPERATIVE FOR RELEASING SAID CONNECTION, MEANS
US325842A 1963-11-26 1963-11-26 Equipment for operator served calls at an intermediate switching center Expired - Lifetime US3341662A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US325842A US3341662A (en) 1963-11-26 1963-11-26 Equipment for operator served calls at an intermediate switching center

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US325842A US3341662A (en) 1963-11-26 1963-11-26 Equipment for operator served calls at an intermediate switching center

Publications (1)

Publication Number Publication Date
US3341662A true US3341662A (en) 1967-09-12

Family

ID=23269677

Family Applications (1)

Application Number Title Priority Date Filing Date
US325842A Expired - Lifetime US3341662A (en) 1963-11-26 1963-11-26 Equipment for operator served calls at an intermediate switching center

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US (1) US3341662A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3499117A (en) * 1967-05-19 1970-03-03 Communication Equipment & Eng Remote operator coin control using multi-frequency tones
US4007339A (en) * 1975-11-28 1977-02-08 Bell Telephone Laboratories, Incorporated Arrangement serving operator assistance calls requiring routing back to originating offices
US4145578A (en) * 1978-04-28 1979-03-20 Bell Telephone Laboratories, Incorporated Position access preference method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2357756A (en) * 1942-01-03 1944-09-05 Musher Foundation Inc Process of preparing a vitamin b complex concentrate
US3019294A (en) * 1959-07-03 1962-01-30 Automatic Elect Lab Paystation customer dialling in a toll ticketing telephone system
US3133153A (en) * 1960-10-07 1964-05-12 Automatic Elect Lab Special service toll telephone system
US3218392A (en) * 1961-10-10 1965-11-16 North Electric Co Signalling system for use with toll ticketing equipment

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2357756A (en) * 1942-01-03 1944-09-05 Musher Foundation Inc Process of preparing a vitamin b complex concentrate
US3019294A (en) * 1959-07-03 1962-01-30 Automatic Elect Lab Paystation customer dialling in a toll ticketing telephone system
US3133153A (en) * 1960-10-07 1964-05-12 Automatic Elect Lab Special service toll telephone system
US3218392A (en) * 1961-10-10 1965-11-16 North Electric Co Signalling system for use with toll ticketing equipment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3499117A (en) * 1967-05-19 1970-03-03 Communication Equipment & Eng Remote operator coin control using multi-frequency tones
US4007339A (en) * 1975-11-28 1977-02-08 Bell Telephone Laboratories, Incorporated Arrangement serving operator assistance calls requiring routing back to originating offices
US4145578A (en) * 1978-04-28 1979-03-20 Bell Telephone Laboratories, Incorporated Position access preference method

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