公开(公告)号：US3691301A

公开(公告)日：1972-09-12

申请号：US3691301D

申请日：1970-12-14

Applicant: BELL TELEPHONE LABOR INC

Inventor： ZAROUNI ALFRED

IPC: H04Q3/00 ,  H04M15/22

CPC classification number: H04Q3/0004

Abstract: A switching system is disclosed which allows subscribers to place calls at prescribed times on an abbreviated dialing basis to preselected directory numbers for a flat rate charge. A common memory is provided with a word storing the called directory number and a no-charge indication together with time restriction information as to the time period when the service is effective. When a customer desires to place a call to a preselected directory number, the time restriction information associated with that number is compared with the current time and, if the restriction is satisfied, the call is set up using the stored directory number. The no-charge indication is utilized to bypass the normal charging routine.

公开(公告)号：US3881060A

公开(公告)日：1975-04-29

申请号：US36664373

申请日：1973-06-04

Applicant: BELL TELEPHONE LABOR INC

Inventor： CONNELL JOSEPH BERNARD ,  ZAROUNI ALFRED

IPC: H04Q3/54 ,  H04M3/44

CPC classification number: H04Q3/54

Abstract: An emergency reporting system for selectively interconnecting ones of a plurality of telephone stations, each assigned a directory number, through the telephone communication switching network to designated emergency service centers. The system is arranged so that a calling telephone station dialing a universal emergency reporting number is connected from an originating telephone central office over a dedicated trunk facility to a tandem switching office. The tandem switching office receives and translates the directory number of the calling telephone station into a routing code utilized for directing the tandem switching office to interconnect the calling telephone station with an emergency service center specifically designated to serve the calling telephone station.

Abstract translation: 一种紧急报告系统，用于通过电话通信交换网络选择性地互连多个电话台中的一个，每个电话台分配一个电话号码号码到指定的紧急服务中心。 该系统被布置成使得拨打通用紧急报告号码的呼叫电话台从始发电话中心局通过专用中继设施连接到串联交换局。 串联交换局接收并转换呼叫电话台的号码簿到用于指示串联交换局的路由代码，以将主叫电话台与专门指定为服务呼叫电话台的紧急服务中心互连。

公开(公告)号：US3471647A

公开(公告)日：1969-10-07

申请号：US3471647D

申请日：1965-12-27

Applicant: BELL TELEPHONE LABOR INC

Inventor： ABERT CHARLES ,  RUNYON JOHN P ,  ZAROUNI ALFRED

IPC: H04Q3/54 ,  H04M3/02

CPC classification number: H04Q3/54

公开(公告)号：US3883702A

公开(公告)日：1975-05-13

申请号：US47167374

申请日：1974-05-20

Applicant: BELL TELEPHONE LABOR INC

Inventor： ZAROUNI ALFRED

IPC: H04M3/28 ,  H04Q3/00 ,  H04M3/22

CPC classification number: H04M3/28 ,  H04Q3/00

Abstract: This specification discloses applique circuitry for an incoming trunk circuit. The circuitry detects those faults and ''''black box'''' devices on telephone call connections which produce undesired momentary off-hook signals for tripping incoming call ringing and allowing call conversation, but which are inadequate for generating called party answer signals needed for charging purposes. Relays in the circuitry are activated by the trunk circuit for producing a timed test answer signal following the tripping of ringing. The test signal operates timer and flip-flop circuits for generating a fault alarm only when a valid answer signal is not received during the persistence of the test signal. These circuits further control the trunk circuit to hold call connections for manual tracing and identification of the called station.

Abstract translation: 本说明书公开了用于进入中继电路的贴片电路。 该电路检测电话呼叫连接上的这些故障和“黑箱”设备，产生不期望的瞬时摘机信号，用于跳出来电呼叫并允许呼叫通话，但不足以产生用于充电目的所需的被叫方应答信号。 电路中的继电器由中继线电路激活，用于在振铃跳闸之后产生定时测试应答信号。 只有当在测试信号的持续期间没有接收到有效的应答信号时，测试信号才会对定时器和触发器电路进行操作，以产生故障报警。 这些电路进一步控制中继电路以保持用于手动跟踪和被叫站识别的呼叫连接。

公开(公告)号：US3573389A

公开(公告)日：1971-04-06

申请号：US3573389D

申请日：1968-12-18

Applicant: BELL TELEPHONE LABOR INC

Inventor： GREENSTEIN MARTIN R ,  ZAROUNI ALFRED

IPC: H04M1/677 ,  H04Q3/54 ,  H04M3/54

CPC classification number: H04Q3/54 ,  H04M1/677

Abstract: Special services, such as call transfer and abbreviated dialing, are provided by auxiliary circuits each uniquely associated with certain subscriber lines in a common control-switching system. The auxiliary circuit is arranged with shift registers to recognize the dialing of a predetermined code and to respond thereto by releasing and reenabling the common control switching equipment. On abbreviated dialing calls, the return of dial tone by the reenabled central office register enables the auxiliary circuit to outpulse the directory number of the desired station. On transfer calls, after dialing the access code, the subscriber primes the transfer feature by dialing the directory number of the transfer station. This number is then simultaneously stored in the auxiliary circuit and in the reenabled central office register. In either situation the call then progresses to completion in the normal manner.