公开(公告)号：US2911474A

公开(公告)日：1959-11-03

申请号：US69391557

申请日：1957-11-01

Applicant: BELL TELEPHONE LABOR INC

Inventor： WEINBERG SEYMOUR B ,  WILLIFORD OSCAR H

IPC: H04M11/04

CPC classification number: H04M11/04

公开(公告)号：US3253089A

公开(公告)日：1966-05-24

申请号：US24499162

申请日：1962-12-17

Applicant: BELL TELEPHONE LABOR INC

Inventor： CHARLES BREEN ,  WATSON JR ROBERT E ,  WEINBERG SEYMOUR B

IPC: H04M3/54 ,  H04Q3/00

CPC classification number: H04Q3/0004 ,  H04M3/54

公开(公告)号：US3112373A

公开(公告)日：1963-11-26

申请号：US10860761

申请日：1961-05-08

Applicant: BELL TELEPHONE LABOR INC

Inventor： WEINBERG SEYMOUR B

IPC: H04Q3/62

CPC classification number: H04Q3/625

公开(公告)号：US3571518A

公开(公告)日：1971-03-16

申请号：US3571518D

申请日：1968-08-13

Applicant: BELL TELEPHONE LABOR INC ,  WESTERN ELECTRIC CO

Inventor： CHIPMAN ELMER O ,  MCCARROLL ROBERT J ,  WEINBERG SEYMOUR B

IPC: H04M3/60 ,  H04Q3/00 ,  H04M5/06

CPC classification number: H04M3/60 ,  H04Q3/00

Abstract: A multiple attendant position telephone switching system is arranged with switching circuitry responsive to the removal of an attendant''s headset at any one position to permit an attendant at another position to answer calls that would otherwise be directed to the position from which the headset has been removed. The switching circuitry is arranged to recognize and to respond to the occupied or unoccupied status of the positions so as to interconnect unoccupied positions with adjacent occupied positions prior to interconnecting those positions with positions more remotely located. Occupied consoles may be selectively interconnected so that an idle attendant may assist a busy attendant on a one call basis under control of the assisting attendant.

公开(公告)号：US3441679A

公开(公告)日：1969-04-29

申请号：US3441679D

申请日：1965-09-22

Applicant: BELL TELEPHONE LABOR INC

Inventor： BRAUND REED J ,  WEINBERG SEYMOUR B

IPC: H04Q3/62 ,  H04M1/00

CPC classification number: H04Q3/625