JPS641990B2 - - Google Patents
Info
- Publication number
- JPS641990B2 JPS641990B2 JP5239181A JP5239181A JPS641990B2 JP S641990 B2 JPS641990 B2 JP S641990B2 JP 5239181 A JP5239181 A JP 5239181A JP 5239181 A JP5239181 A JP 5239181A JP S641990 B2 JPS641990 B2 JP S641990B2
- Authority
- JP
- Japan
- Prior art keywords
- data
- channel
- path memory
- call
- memory
- 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.)
- Expired
Links
- 238000001514 detection method Methods 0.000 claims description 20
- 230000005540 biological transmission Effects 0.000 description 4
- 230000004913 activation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/22—Arrangements for supervision, monitoring or testing
- H04M3/24—Arrangements for supervision, monitoring or testing with provision for checking the normal operation
- H04M3/244—Arrangements for supervision, monitoring or testing with provision for checking the normal operation for multiplex systems
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Exchanges (AREA)
- Exchange Systems With Centralized Control (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5239181A JPS57168564A (en) | 1981-04-09 | 1981-04-09 | Channel memory checking system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5239181A JPS57168564A (en) | 1981-04-09 | 1981-04-09 | Channel memory checking system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57168564A JPS57168564A (en) | 1982-10-16 |
JPS641990B2 true JPS641990B2 (en]) | 1989-01-13 |
Family
ID=12913498
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5239181A Granted JPS57168564A (en) | 1981-04-09 | 1981-04-09 | Channel memory checking system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57168564A (en]) |
-
1981
- 1981-04-09 JP JP5239181A patent/JPS57168564A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS57168564A (en) | 1982-10-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0408041B1 (en) | A communication unit comprising caller identification function and caller identifying method in a digital communication network | |
JPS58195392A (ja) | 電気通信交換機用デイジタルスイツチング回路網 | |
JPS641990B2 (en]) | ||
JP2881185B2 (ja) | メッセージ切換装置 | |
JPH033018Y2 (en]) | ||
JP2908144B2 (ja) | ディジタル回線終端装置 | |
JPS59114929A (ja) | 伝送路障害検出方式 | |
JPS61195493A (ja) | 分散型自火報システム | |
KR20010027144A (ko) | 사설 교환 시스템에 음성 사서함 기능 제공장치 | |
JPS6394756A (ja) | 無効保留呼の判定方式 | |
JPS6084062A (ja) | トランクの無効保留検出方式 | |
JPH0259670B2 (en]) | ||
JPS60244142A (ja) | 共通線信号方式用疑似相手局装置 | |
JPS63102523A (ja) | 環状網通信装置 | |
JPS6329864B2 (en]) | ||
JPH02309894A (ja) | ボタン電話装置のシステム間接続方式 | |
JPH031749A (ja) | マルチ通信ポートを有するファクシシミリ装置 | |
JPH0435940B2 (en]) | ||
JPS628826B2 (en]) | ||
JPS59125149A (ja) | トランク無効保留検出方式 | |
JPH06164679A (ja) | ケーブルの接続確認方式 | |
JPS6364099B2 (en]) | ||
JPH0259671B2 (en]) | ||
JPH03139965A (ja) | ファクシミリ装置 | |
JPS59226550A (ja) | デイジタル会議試験方式 |