JPS579162A - Signal transmission system in audio packet exchanger - Google Patents

Signal transmission system in audio packet exchanger

Info

Publication number
JPS579162A
JPS579162A JP8249880A JP8249880A JPS579162A JP S579162 A JPS579162 A JP S579162A JP 8249880 A JP8249880 A JP 8249880A JP 8249880 A JP8249880 A JP 8249880A JP S579162 A JPS579162 A JP S579162A
Authority
JP
Japan
Prior art keywords
digital data
telephone set
exchanger
packet exchanger
signal transmission
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
JP8249880A
Other languages
English (en)
Inventor
Hideo Aoyama
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP8249880A priority Critical patent/JPS579162A/ja
Publication of JPS579162A publication Critical patent/JPS579162A/ja
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Devices For Supply Of Signal Current (AREA)
JP8249880A 1980-06-18 1980-06-18 Signal transmission system in audio packet exchanger Pending JPS579162A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8249880A JPS579162A (en) 1980-06-18 1980-06-18 Signal transmission system in audio packet exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8249880A JPS579162A (en) 1980-06-18 1980-06-18 Signal transmission system in audio packet exchanger

Publications (1)

Publication Number Publication Date
JPS579162A true JPS579162A (en) 1982-01-18

Family

ID=13776151

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8249880A Pending JPS579162A (en) 1980-06-18 1980-06-18 Signal transmission system in audio packet exchanger

Country Status (1)

Country Link
JP (1) JPS579162A (ja)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53140908A (en) * 1977-05-16 1978-12-08 Hitachi Ltd First ringing control system in time sharing exchanger
JPS54121606A (en) * 1978-03-14 1979-09-20 Nec Corp Multi-frequency signal generating device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53140908A (en) * 1977-05-16 1978-12-08 Hitachi Ltd First ringing control system in time sharing exchanger
JPS54121606A (en) * 1978-03-14 1979-09-20 Nec Corp Multi-frequency signal generating device

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