JPS6436162A - Tone sending type magnetic telephone circuit exchange - Google Patents

Tone sending type magnetic telephone circuit exchange

Info

Publication number
JPS6436162A
JPS6436162A JP19012287A JP19012287A JPS6436162A JP S6436162 A JPS6436162 A JP S6436162A JP 19012287 A JP19012287 A JP 19012287A JP 19012287 A JP19012287 A JP 19012287A JP S6436162 A JPS6436162 A JP S6436162A
Authority
JP
Japan
Prior art keywords
line
telephone terminal
terminal set
connection
special tone
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
JP19012287A
Other languages
Japanese (ja)
Inventor
Hikari Asano
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
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 filed Critical NEC Corp
Priority to JP19012287A priority Critical patent/JPS6436162A/en
Publication of JPS6436162A publication Critical patent/JPS6436162A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To confirm the connection of a voice line at a telephone terminal set prior to the voice response from an opposite party by sending a special tone to a magnetic type interface line not connected yet. CONSTITUTION:A special tone generating section 5 is provided, which sends a special tone to a line at non-talking state. In case of a calling by a magnetic telephone terminal set 2, a ringer signal detection section 4 detects a ringer signal and sends incoming information to a telephone terminal set 3 via a control line 6. In selecting the line of the magnetic type telephone terminal set by the telephone terminal set 3, the connection with the special tone generating section 5 is released and connected only to the line of the opposite calling party. The telephone terminal set 3 and the magnetic telephone terminal set 2 can recognize the connection of line through the interruption of the special tone. Thus, the connection of the voice line is recognized by the telephone terminal set prior to the voice response from the opposite party and quicker line utilization is attained.
JP19012287A 1987-07-31 1987-07-31 Tone sending type magnetic telephone circuit exchange Pending JPS6436162A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19012287A JPS6436162A (en) 1987-07-31 1987-07-31 Tone sending type magnetic telephone circuit exchange

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19012287A JPS6436162A (en) 1987-07-31 1987-07-31 Tone sending type magnetic telephone circuit exchange

Publications (1)

Publication Number Publication Date
JPS6436162A true JPS6436162A (en) 1989-02-07

Family

ID=16252759

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19012287A Pending JPS6436162A (en) 1987-07-31 1987-07-31 Tone sending type magnetic telephone circuit exchange

Country Status (1)

Country Link
JP (1) JPS6436162A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4837231A (en) * 1986-05-01 1989-06-06 Nippon Steel Corporation Sintered non-oxide ceramic composite

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4837231A (en) * 1986-05-01 1989-06-06 Nippon Steel Corporation Sintered non-oxide ceramic composite

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