JPS57202170A - Line selecting system - Google Patents

Line selecting system

Info

Publication number
JPS57202170A
JPS57202170A JP8774281A JP8774281A JPS57202170A JP S57202170 A JPS57202170 A JP S57202170A JP 8774281 A JP8774281 A JP 8774281A JP 8774281 A JP8774281 A JP 8774281A JP S57202170 A JPS57202170 A JP S57202170A
Authority
JP
Japan
Prior art keywords
lines
line
selection
signal indicating
calls
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.)
Granted
Application number
JP8774281A
Other languages
Japanese (ja)
Other versions
JPS6351588B2 (en
Inventor
Seiichi Nakajima
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP8774281A priority Critical patent/JPS57202170A/en
Publication of JPS57202170A publication Critical patent/JPS57202170A/en
Publication of JPS6351588B2 publication Critical patent/JPS6351588B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/36—Statistical metering, e.g. recording occasions when traffic exceeds capacity of trunks

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)

Abstract

PURPOSE:To uniform the service and to improve the using efficiency of a line, by determining the propriety of selection of the line through the number of used lines and all the idle lines predetermined depending on each call type of lines commonly used with a lot of different calls. CONSTITUTION:When a relay station has a call to a common line, a memory 53 is addressed with the type of calls, and the number of used lines of the types of calls and the predetermined holding and stop call number are read out in a register 59. A comparator 58 generates a signal indicating the possibility of line selection when the number of used lines is small. A comparator 57 compares all the idle lines and the predetermined number of holding lines given from registers 51 and 52, and when the number of idle lines is greater than the predetermined number, a signal indicating the possibility of line selection is generated. A signal of comparators 57 and 59 is outputted to a terminal 65 via an OR circuit 62 as a signal indicating the propriety of selection of a common line.
JP8774281A 1981-06-08 1981-06-08 Line selecting system Granted JPS57202170A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8774281A JPS57202170A (en) 1981-06-08 1981-06-08 Line selecting system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8774281A JPS57202170A (en) 1981-06-08 1981-06-08 Line selecting system

Publications (2)

Publication Number Publication Date
JPS57202170A true JPS57202170A (en) 1982-12-10
JPS6351588B2 JPS6351588B2 (en) 1988-10-14

Family

ID=13923377

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8774281A Granted JPS57202170A (en) 1981-06-08 1981-06-08 Line selecting system

Country Status (1)

Country Link
JP (1) JPS57202170A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS592475A (en) * 1982-06-28 1984-01-09 Nippon Telegr & Teleph Corp <Ntt> System for controlling loss probability on type of call
JPH0294858A (en) * 1988-09-30 1990-04-05 Nippon Telegr & Teleph Corp <Ntt> Dynamic holding control system
JPH03503533A (en) * 1988-10-24 1991-08-08 ノーウィッチ、イートン、ファーマスーティカルズ、インコーポレーテッド New antimicrobial agents dithiocarbamoylquinolones

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02129185U (en) * 1989-04-01 1990-10-24

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS592475A (en) * 1982-06-28 1984-01-09 Nippon Telegr & Teleph Corp <Ntt> System for controlling loss probability on type of call
JPH0133067B2 (en) * 1982-06-28 1989-07-11 Nippon Denshin Denwa Kk
JPH0294858A (en) * 1988-09-30 1990-04-05 Nippon Telegr & Teleph Corp <Ntt> Dynamic holding control system
JPH03503533A (en) * 1988-10-24 1991-08-08 ノーウィッチ、イートン、ファーマスーティカルズ、インコーポレーテッド New antimicrobial agents dithiocarbamoylquinolones

Also Published As

Publication number Publication date
JPS6351588B2 (en) 1988-10-14

Similar Documents

Publication Publication Date Title
GB1464010A (en) System and method for reading remotely located meters
JPS53128204A (en) Connection system between different-type terminal units
JPS57202170A (en) Line selecting system
JPS60106237A (en) Display pager device
GB1433933A (en) Telephone apparatus
JPS5675765A (en) Transfer system for incoming call
KR900008817A (en) Automatic ring load distribution in exchange system
JPS53105922A (en) Absence transfer system between stations
GB1480221A (en) Telephone intercommunication systems
JPS57183170A (en) Time correspondence transfer system
IT8323889A0 (en) PROVISION FOR CALL TEST ON SUBSCRIBER LINES.
JPS5693472A (en) Extension representative group no-response connection system
GB814598A (en) Improvements in or relating to telephone systems
JPS5216249A (en) Test system for line and subscriber call meter
JPS5739690A (en) Incoming call distribution control system
JPS52125213A (en) Absence transfer system
JPS5472607A (en) Special number exchange network system
JPS5474614A (en) Connection and test system for relay line
KR900019436A (en) Automatic Call Distribution Method in Private Exchange
JPS5248412A (en) Register storage system in automatic exchanger
JPS6482725A (en) Queuing system for data connection
JPS5342508A (en) Automatic test system for telephone lines
GB1168594A (en) Improvements in or relating to Data Exchange Systems
GB925817A (en) Improvements in or relating to circuit arrangements for characterising the origin oftrunk dialling calls in central evaluating arrangements
GB927507A (en) Circuit arrangement for a telecommunications installation