JPS575446A - Polling system in radio telephone system - Google Patents

Polling system in radio telephone system

Info

Publication number
JPS575446A
JPS575446A JP8049080A JP8049080A JPS575446A JP S575446 A JPS575446 A JP S575446A JP 8049080 A JP8049080 A JP 8049080A JP 8049080 A JP8049080 A JP 8049080A JP S575446 A JPS575446 A JP S575446A
Authority
JP
Japan
Prior art keywords
signal
lines
polling
communication
choking
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.)
Pending
Application number
JP8049080A
Other languages
Japanese (ja)
Inventor
Tomoe Kashiwagi
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.)
Hitachi Denshi KK
Original Assignee
Hitachi Denshi KK
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 Hitachi Denshi KK filed Critical Hitachi Denshi KK
Priority to JP8049080A priority Critical patent/JPS575446A/en
Publication of JPS575446A publication Critical patent/JPS575446A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W99/00—Subject matter not provided for in other groups of this subclass

Abstract

PURPOSE:To enable polling without giving adverse effect on line during communication, by choking all the circuits including lines of terminal stations in advance and making it after the end of calls on the entire lines, when polling is made from a communication master station. CONSTITUTION:When polling is made from a communication master station 1, the presence of lines during communication is confirmed with a communication signal 4, and when the lines during communication are present, a multiplex line choking signal 5 is transmitted to the entire system to inhibit new connection to an incoming line from a branching staion 2. Further, when no talking signal is present to the terminals of the branching staion, the braching station 2 transmits a terminal line choking signal 6 to terminals 31-3n to inhibit new calls from the terminal stations 31-3n, avoiding the production of new calls in all the lines. Thus, the master station 1 wait for the restoration of lines transmitting the talking signal 4 already during talking and delivers a polling signal 7.
JP8049080A 1980-06-14 1980-06-14 Polling system in radio telephone system Pending JPS575446A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8049080A JPS575446A (en) 1980-06-14 1980-06-14 Polling system in radio telephone system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8049080A JPS575446A (en) 1980-06-14 1980-06-14 Polling system in radio telephone system

Publications (1)

Publication Number Publication Date
JPS575446A true JPS575446A (en) 1982-01-12

Family

ID=13719730

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8049080A Pending JPS575446A (en) 1980-06-14 1980-06-14 Polling system in radio telephone system

Country Status (1)

Country Link
JP (1) JPS575446A (en)

Similar Documents

Publication Publication Date Title
SE8900642L (en) CONNECTION OF SUBSCRIPTION DATA SYSTEMS
GB1466162A (en) Telecommunications systems
SE9702561L (en) Method and apparatus of a telecommunications network
GB1478655A (en) Data modem having line verification features
JPS575446A (en) Polling system in radio telephone system
ES8309048A1 (en) System for the transmission of messages to a subscriber's set through a subscriber's line in a telephone installation.
JPS574649A (en) Calling system for combined circuit of data terminal and telephone terminal
JPS5547768A (en) Facsimile callout system
JPS56132841A (en) Different-speed communication system
JPS5676657A (en) Signal transmission system
JPS5728494A (en) Private branch of exchange system
GB1473370A (en) Intercommunication systems
JPS56122555A (en) Switching control system
JPS54156407A (en) Information communication system
JPS6449454A (en) Multidrop communication system
JPS57185761A (en) Fascimile simultaneous calling system
JPS5648742A (en) Multipoint system
JPS56157169A (en) Called subscriber answering system of data transmission system
JPS57143971A (en) Transmission system for busy-back signal
JPS5495103A (en) Wireless communication system
JPS5735432A (en) Waiting connection system for same group call
JPS54157023A (en) Time division communication system
JPS57140061A (en) Call tracing method
JPS5358702A (en) Signal selecting/sending system
JPS55143864A (en) Remote test system