JPS5690670A - Communication system - Google Patents

Communication system

Info

Publication number
JPS5690670A
JPS5690670A JP16730079A JP16730079A JPS5690670A JP S5690670 A JPS5690670 A JP S5690670A JP 16730079 A JP16730079 A JP 16730079A JP 16730079 A JP16730079 A JP 16730079A JP S5690670 A JPS5690670 A JP S5690670A
Authority
JP
Japan
Prior art keywords
signal
phase
data transmission
terminal station
terminal
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
JP16730079A
Other languages
Japanese (ja)
Inventor
Takao Oka
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP16730079A priority Critical patent/JPS5690670A/en
Publication of JPS5690670A publication Critical patent/JPS5690670A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Communication Control (AREA)

Abstract

PURPOSE:To secure phase switching control by making a system enter into a data transmission phase when a selective signal is detected by a selective signal detecting means, and by starting a calling phase by an additional telephone set by generating a ringing tone when the selective signal is not detected. CONSTITUTION:In case of a terminal calling phase, the party station, e.g. terminal station 12 sends out dial pulse DP. Consequently, exchange 13 selects terminal system 24 and sends call signal BL. Network control part 14, on the other hand, detects the incoming of call signal BL and closes the main wire. As a result, control 23 sends connection answer signal CON out of signal transmission part 17. Then, terminal station 12, as connection answer signal CON is received, selects the data transmission phase or calling phase and makes a response. When selective signal SEL from terminal station 12 is inputted to signal reception part 18 within time T, control part 23 exercises control over switching to the data transmission phase. Consequently, data transmission and reception part 21 transmits data (TEXT) to terminal station 12 via switch part 16.
JP16730079A 1979-12-22 1979-12-22 Communication system Pending JPS5690670A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16730079A JPS5690670A (en) 1979-12-22 1979-12-22 Communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16730079A JPS5690670A (en) 1979-12-22 1979-12-22 Communication system

Publications (1)

Publication Number Publication Date
JPS5690670A true JPS5690670A (en) 1981-07-22

Family

ID=15847191

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16730079A Pending JPS5690670A (en) 1979-12-22 1979-12-22 Communication system

Country Status (1)

Country Link
JP (1) JPS5690670A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59178065A (en) * 1983-03-29 1984-10-09 Fujitsu Ltd Call control method
JPS6281161A (en) * 1985-10-03 1987-04-14 Mitsubishi Electric Corp Electronic computer
JPS63151256A (en) * 1986-12-16 1988-06-23 Fujitsu Ltd Terminal equipment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59178065A (en) * 1983-03-29 1984-10-09 Fujitsu Ltd Call control method
JPS6281161A (en) * 1985-10-03 1987-04-14 Mitsubishi Electric Corp Electronic computer
JPS63151256A (en) * 1986-12-16 1988-06-23 Fujitsu Ltd Terminal equipment

Similar Documents

Publication Publication Date Title
US4355207A (en) Telephone answering system
GB1466162A (en) Telecommunications systems
KR940009476B1 (en) Cellular telephone with standard telephone set
KR890001329A (en) Wireless Telephone Device and Control Method
US4059732A (en) Centralized telephone answering apparatus with remote accessing
GB1283968A (en) Switching systems
GB1352212A (en) Remote control telephone apparatus
JPS5690670A (en) Communication system
GB1085938A (en) Voice-frequency key dialling telephone system
JPS5664524A (en) Telephone installed on travelling object
JPS56156058A (en) Automatic telephone transfer device
HK137294A (en) Telephone answering device using voice synthesizer for outgoing message
JPS55138958A (en) Originating line terminal confirmation system in terminating line terminal
JPS56152393A (en) Multiparty radiotelephony system
JPS55115764A (en) Telephone set of absence reception
JPS58187050A (en) Automatic dial device
JPS54158106A (en) Incoming switch system to telephone set equipment or picture communication equipment in telephone circuit
JPS5758452A (en) Button telephone device
JPS54100608A (en) Circuit control system of time-division digital telephone switchboard
JPS5577270A (en) Communication unit
JPS5630355A (en) Call selection system of terminal equipment
JP3060738B2 (en) Terminal device selection connection device and terminal device selection connection method
JPS5624862A (en) Answering system for office incoming call
JPS54152906A (en) Specific-number telephone system
JPS5730451A (en) Modulator and demodulator of information processing center