JPS56110378A - Test system for conference service device - Google Patents

Test system for conference service device

Info

Publication number
JPS56110378A
JPS56110378A JP1336980A JP1336980A JPS56110378A JP S56110378 A JPS56110378 A JP S56110378A JP 1336980 A JP1336980 A JP 1336980A JP 1336980 A JP1336980 A JP 1336980A JP S56110378 A JPS56110378 A JP S56110378A
Authority
JP
Japan
Prior art keywords
trunks
service device
conference service
trunk
service
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
JP1336980A
Other languages
Japanese (ja)
Inventor
Shohei Sato
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 JP1336980A priority Critical patent/JPS56110378A/en
Publication of JPS56110378A publication Critical patent/JPS56110378A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)

Abstract

PURPOSE:To realize a test of the normal state for a conference service device without adding any special hardware, by applying the switch network continuity test function that is necessary for connection of the ordinary call. CONSTITUTION:One trunk 201 among (n) units of service trunks sends the signal tone f1 to the conference service device 206, and another trunk 203 among the service trunks excepting the trunk 201 that received and recognized the signal tone transmits the signal tone f2 having different frequency to the device 206. The (n-2) units of service trunks excepting the trunks 201 and 203 confirm the signal tones f1 and f2. And the trunks 201 and 203 confirm the tones f2 and f1 each. In such way, the normal state can be confirmed for the conference service device.
JP1336980A 1980-02-06 1980-02-06 Test system for conference service device Pending JPS56110378A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1336980A JPS56110378A (en) 1980-02-06 1980-02-06 Test system for conference service device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1336980A JPS56110378A (en) 1980-02-06 1980-02-06 Test system for conference service device

Publications (1)

Publication Number Publication Date
JPS56110378A true JPS56110378A (en) 1981-09-01

Family

ID=11831167

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1336980A Pending JPS56110378A (en) 1980-02-06 1980-02-06 Test system for conference service device

Country Status (1)

Country Link
JP (1) JPS56110378A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59169263A (en) * 1983-03-16 1984-09-25 Nec Corp Confirming system for connection of line
JPS62206955A (en) * 1986-03-06 1987-09-11 Oki Electric Ind Co Ltd Test system for conference trunk
WO1998026561A3 (en) * 1996-12-10 1998-10-01 Ericsson Telefon Ab L M Voice path testing in telecommunications systems

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59169263A (en) * 1983-03-16 1984-09-25 Nec Corp Confirming system for connection of line
JPS62206955A (en) * 1986-03-06 1987-09-11 Oki Electric Ind Co Ltd Test system for conference trunk
JPH056948B2 (en) * 1986-03-06 1993-01-27 Oki Electric Ind Co Ltd
WO1998026561A3 (en) * 1996-12-10 1998-10-01 Ericsson Telefon Ab L M Voice path testing in telecommunications systems
US6134302A (en) * 1996-12-10 2000-10-17 Telefonaktiebolaget Lm Ericsson Voice path testing in telecommunications system

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