JPS5775054A - Testing system for digital coference telephone connection device - Google Patents

Testing system for digital coference telephone connection device

Info

Publication number
JPS5775054A
JPS5775054A JP10397880A JP10397880A JPS5775054A JP S5775054 A JPS5775054 A JP S5775054A JP 10397880 A JP10397880 A JP 10397880A JP 10397880 A JP10397880 A JP 10397880A JP S5775054 A JPS5775054 A JP S5775054A
Authority
JP
Japan
Prior art keywords
telephone connection
connection device
dissidence
conference telephone
fixed data
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
JP10397880A
Other languages
Japanese (ja)
Inventor
Yoshiaki Sutani
Hitoshi Shirai
Toru Masuda
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP10397880A priority Critical patent/JPS5775054A/en
Publication of JPS5775054A publication Critical patent/JPS5775054A/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
    • H04M3/561—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities by multiplexing

Landscapes

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

Abstract

PURPOSE:To test always a conference telephone connection device even during operating of this device, by provoding a fixed data input device and a device, which detects dissidence between the operation result and an expected value, in the conference telephone connection device. CONSTITUTION:A testing device TST is provided in a conference telephone connection device CFC, and this device TST is provided with a fixed data input device FXD and a dissidence detecting device DET. On PCM signal highways (a) and (b), fixed data is inputted from the fixed data input device FXD to a time slot which is not used for the digital conference telephone on these highways; and the result of the digital multiple operation processing in the conference telephone connection device CFC is compared with a expected value and dissidence between them is detected by the dissidence detecting device DET. If the dissidence is detected, a fault occurs in the conference telephone connection device CFC.
JP10397880A 1980-07-29 1980-07-29 Testing system for digital coference telephone connection device Pending JPS5775054A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10397880A JPS5775054A (en) 1980-07-29 1980-07-29 Testing system for digital coference telephone connection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10397880A JPS5775054A (en) 1980-07-29 1980-07-29 Testing system for digital coference telephone connection device

Publications (1)

Publication Number Publication Date
JPS5775054A true JPS5775054A (en) 1982-05-11

Family

ID=14368405

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10397880A Pending JPS5775054A (en) 1980-07-29 1980-07-29 Testing system for digital coference telephone connection device

Country Status (1)

Country Link
JP (1) JPS5775054A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59229962A (en) * 1983-06-10 1984-12-24 Nec Corp Monitoring device for conference telephone

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59229962A (en) * 1983-06-10 1984-12-24 Nec Corp Monitoring device for conference telephone

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