JPS62105656U - - Google Patents

Info

Publication number
JPS62105656U
JPS62105656U JP19754485U JP19754485U JPS62105656U JP S62105656 U JPS62105656 U JP S62105656U JP 19754485 U JP19754485 U JP 19754485U JP 19754485 U JP19754485 U JP 19754485U JP S62105656 U JPS62105656 U JP S62105656U
Authority
JP
Japan
Prior art keywords
pseudo
circuits
trunk
line
interface
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
JP19754485U
Other languages
English (en)
Japanese (ja)
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 filed Critical
Priority to JP19754485U priority Critical patent/JPS62105656U/ja
Publication of JPS62105656U publication Critical patent/JPS62105656U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Monitoring And Testing Of Exchanges (AREA)
JP19754485U 1985-12-23 1985-12-23 Pending JPS62105656U (enrdf_load_stackoverflow)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19754485U JPS62105656U (enrdf_load_stackoverflow) 1985-12-23 1985-12-23

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19754485U JPS62105656U (enrdf_load_stackoverflow) 1985-12-23 1985-12-23

Publications (1)

Publication Number Publication Date
JPS62105656U true JPS62105656U (enrdf_load_stackoverflow) 1987-07-06

Family

ID=31157381

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19754485U Pending JPS62105656U (enrdf_load_stackoverflow) 1985-12-23 1985-12-23

Country Status (1)

Country Link
JP (1) JPS62105656U (enrdf_load_stackoverflow)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5553959A (en) * 1978-10-17 1980-04-19 Nec Corp False calling device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5553959A (en) * 1978-10-17 1980-04-19 Nec Corp False calling device

Similar Documents

Publication Publication Date Title
US3952172A (en) Telephone call simulator
JPS62105656U (enrdf_load_stackoverflow)
US3715513A (en) Pabx-interface interconnection device
CA1267960C (en) MULTIPLE ACCESS COMMUNICATION SYSTEM WITH COMPARISON CONTROL CIRCUIT FOR SWITCHING CONNECTIONS BETWEEN OFFICES
US3904831A (en) Tone control arrangement for electronic PABX
DE3063942D1 (en) Subscriber line circuit with ground key activation indication, high ohmic commutable feeding and apparatus for ringing-signal generation
JP2666253B2 (ja) Ｐｂｘダイヤルインによる追加ダイヤル方式
JPS5563161A (en) Subscriber circuit test system by subscriber side starting
JPS5690661A (en) Two-circuit simultaneous connection and exchange system of key telephone set
Moorhouse et al. Line-terminating equipment for a tdm electronic telephone exchange
JPS6340924Y2 (enrdf_load_stackoverflow)
Meise et al. A New Self-Contained Private Branch Exchange Utilizing Electronic Control and Metallic Crosspoints
JP3068953B2 (ja) 端末用網制御装置
JPS5928309B2 (ja) 加入者回線試験方式
JPS6320067B2 (enrdf_load_stackoverflow)
JPS58175348A (ja) 交換機試験方式
JPS5981153U (ja) 停電時におけるボタン電話装置の通話品質保証回路
JPS6387065A (ja) 電子式構内交換装置の専用線転送接続方式
JPS5923663B2 (ja) 大量加入者ジヤンパチエツク方式
Pearce Switching System Organization
JPS55125756A (en) Connection test system for automatic exchanger
KR930011562A (ko) 사설교환기의 가입자 부재중 통화장치 및 그 방법
JPS6031346A (ja) 通話損失測定方式
JPS60232759A (ja) 遠隔地における加入者回線試験方式
JPS59152774A (ja) 詳細課金方式