WO2000044154A1 - Systeme de controle d'abonne - Google Patents
Systeme de controle d'abonne Download PDFInfo
- Publication number
- WO2000044154A1 WO2000044154A1 PCT/JP1999/000179 JP9900179W WO0044154A1 WO 2000044154 A1 WO2000044154 A1 WO 2000044154A1 JP 9900179 W JP9900179 W JP 9900179W WO 0044154 A1 WO0044154 A1 WO 0044154A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- subscriber
- test
- protocol
- information
- exchange
- Prior art date
Links
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
- H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
- H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
- H04M3/30—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop
- H04M3/305—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop testing of physical copper line parameters, e.g. capacitance or resistance
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/22—Arrangements for supervision, monitoring or testing
- H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
- H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
- H04M3/30—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop
Definitions
- the present invention relates to a subscriber transmission device (access node or access network) connected to an end exchange and having a function of expanding a geographical accommodation area of a subscriber (subscriber terminal device) managed by the parenthesis end exchange.
- the subscriber test including the subscriber circuit arranged in this access node and the subscriber line accommodated in this subscriber circuit is performed using V5 (V 5.1, V 5.2) Related to the subscriber test system enabled by using the interface protocol. Background art
- an access node that is remotely located in the end exchange.
- the installation of an access node will allow the subscriber exchange managed by the end switch to expand the geographical area of accommodation.
- V5 system V5 interface protocol
- ITU-T International Telecommunication Union and Telecommunication Standardization Sector
- the access nodes and end switches are different.
- the possibility of being provided by equipment manufacturers has increased.
- both parties need to cooperate in the maintenance and operation of end exchanges and access nodes, especially for subscriber testing.
- the maintenance and operation system of the telecommunications service provider is located around the end exchange. For this reason, in order to realize the coordination of maintenance and operation of access nodes and end exchanges provided by different equipment manufacturers, protocol conversion for connecting the two and conversion of subscriber management data are required.
- a database is required, which necessitates the development of software and additional equipment.
- the present invention has been made to solve the above-described problems, and has been made in consideration of a subscriber circuit provided in an access node and a subscriber test including a subscriber line accommodated in the subscriber circuit. It is an object of the present invention to provide a subscriber test system which is enabled by using the V5 interface protocol (V5 system).
- V5 system V5 interface protocol
- a subscriber test system comprising: an exchange accommodating a subscriber and having a maintenance operation terminal;
- a communication node having test equipment for performing tests on the line and the subscriber's circuit;
- a V5 interface protocol is adopted as the communication protocol, and the exchange is configured to instruct a subscriber line corresponding to the accommodated subscriber and a subscriber test of a subscriber circuit input from the maintenance operation terminal.
- the communication node causes the test device to execute the subscriber test based on the test designation information received from the exchange through the logical link, and reports a test result.
- a subscriber test system characterized in that:
- any of the PSTN signal protocol and the port control protocol of the V5 interface protocol can be used. Also, when the accommodating subscriber is an analog subscriber, the PSTN signal protocol is used, and when the accommodating subscriber is a digital subscriber, the port control protocol is used. .
- an information element area following the message type area of the V5 interface protocol is used to specify a test type of the subscriber test.
- FIG. 1 shows an arrangement relationship between an end exchange and an access node in an exchange system according to an embodiment of the present invention.
- FIG. 2 shows a functional overview of the V5 system.
- FIG. 3 shows the detailed configuration of the switching system shown in FIG.
- FIG. 4 shows the configuration of PSTNsignalngprrotocol.
- Figure 5 shows the message flow when testing subscriber lines and subscriber circuits for PSTN subscribers.
- FIG. 6 shows the configuration of the port controll.
- Figure 7 shows the message flow for testing subscriber lines and subscriber circuits for ISDN subscribers.
- FIG. 8 is a flowchart showing an outline of the procedure of the subscriber test.
- Figure 9 is a flowchart showing the details of the procedure for the subscriber test.
- FIG. 1 () is a flowchart showing details of the procedure for the subscriber test. BEST MODE FOR CARRYING OUT THE INVENTION
- a subscriber line 2 that is difficult to accommodate in an end exchange (Local Exchange: LE) 1 is connected to the end exchange 1. It is housed in a remote device called Access Node (A) 3 which is remotely located. The installation of the access node 3 makes it possible to expand the geographical storage area of the subscriber (subscriber terminal) 4 managed by the end exchange 1.
- Fig. 2 shows the functional outline of the V5 system (V5 interface protocol) of the standardized communication protocol of the TU recommendation, the V5 system
- V5 interface protocol V5 interface protocol
- V5 link management control V5 link interface function
- V5 link interface function specifies the details of each function control and the process transition in each function control. Also, on the V5 system, the data configuration on the V5 link is defined as described later.
- V5 control processing unit V5 protocol processing unit
- One end switch 1 accommodates a plurality of access nodes 3 having a plurality of facilities, which may be provided by a plurality of facilities.
- V5 V5.2
- a minimum of one link and a maximum of 16 links are provided between the access node 3 and the end switch 1.
- V5.1 In the V5.1 system, only one link is set.
- Each V5 link is time-divided into 32 time slots (TS0 to TS31).
- the time slot TS () contains a frame synchronization pattern and fault information (: alarm) / maintenance operation information.
- Time slot T S 15, TS 16, and TS 31 are used as V5 control channels or normal bearer channels for circuit users.
- the end switch 1 includes a V5 interface unit 101 that terminates the V5 link 5, and a V5 protocol processing unit 102.
- a test device 7 is connected to the end exchanger 1 through a test audio line 6.
- a maintenance and operation console 9 is connected through a communication link 8.
- the maintenance operation console 9 has a hard disk 10 that constitutes an accommodation subscriber information database.
- the test equipment 7 and the maintenance and operation console 9 are located in the same building as the end exchange 1.
- the V5 protocol processing section 1 () 2 can be realized as having substantially the same configuration as the V5 protocol processing section 3 07 in the access node 3 described later, and although not shown, various interface circuits are omitted. , A microprocessor, and a memory.
- the maintenance operation console 9 can be realized as having the same configuration as the personal computer work station, and although not shown, a hard disk interface for controlling the LAPB interface circuit and the hard disk. It consists of various interface circuits such as circuits, microprocessors, and memories.
- the maintenance operation console 9 is connected to the end exchange 1 by a communication link 8 via a LAP B interface circuit.
- the maintenance operation console 9 operates under the control of an operating system that can perform multitask processing.
- the hard disk 1 () contains the latest application program for each access node 3 for software download processing described later, and the initialization information database for access node V5 system initialization processing described later. Is accumulated. [Access Node Configuration]
- the access node 3 connected to the end exchange 1 via the V5 link 5 accommodates the V5 link interface unit 301 that terminates the V5 link 5.
- a subscriber circuit (digital: SDN) 30 containing a subscriber circuit (analog) 302 and a digital termination circuit NT 1 is housed.
- the subscriber circuits 302 and the V5 link interface unit 301 are connected to each other by a voice bus switch 303.
- the audio bus switch 303 performs the concentration and switching of the user channel.
- the V5 interface unit 301 relays the bearer channel for the line user in the V5 link 5 between the subscriber's circuit 302 and the end exchange 1, and the V5 port interface. Subscriber outgoing / incoming control between pace unit 304 and end exchange 1 using V5 control channels of time slots TS15, TS16, and TS31 It relays information, line switch control information, blockage / non-blocking control information of subscribers and V5 links, and so on.
- the subscriber circuit 302 is connected to the test unit 300 via the test drop line 305 for testing the electrical characteristics of the subscriber circuit 302 and the subscriber line 2. .
- the microprocessor 307 In the V5 protocol processing unit 307, the microprocessor 307, the memory 307, the LAPB (LAPV5) interface circuit 307, the control bus interface circuit 307, and the fault
- the receivers 3 0 7 5 are connected to each other by the bus 3 0 7 6 o
- the fault receiving unit 307 5 receives fault information (alarm) detected by a hardware (not shown) in the access node 3.
- the control bus interface circuit 3 0 7 4 is connected via the control bus 3 0 8 to the V5 link interface unit 3 0 1-each subscriber circuit 3 0 2 and V5 protocol interface unit 3 0 4 , And test unit 306.
- the microprocessor 3071 and the memory 3072 are maintained and operated with the end exchange 1 via the LA ⁇ interface circuit 3 () 73 and the V5 interface unit 301. Communication of information, especially related to subscriber testing. This information includes: the fault information received by the fault receiver 3 0 7 5, the control bus interface circuit 3 0 7 4 is connected to the V 5 link interface unit 3 () 1, It contains various kinds of control information to communicate with the V5 protocol interface unit 304 and the test unit 303. [Software download processing]
- the latest application program can always be downloaded from the maintenance operation console 9 to the access node 3 controlled by the maintenance operation console 9.
- the latest application program for the access node 3 is stored in the hard disk 10 in the maintenance console 9 in advance. For this reason, if the maintainer wants to perform a software download to a specific access node 3, the maintenance node 9 specifies the access node 3 and downloads the software. To instruct.
- the application program to be soft-to-download is transferred from the hard disk 10 in the maintenance and operation console 9 to the target access node via the end exchange 1 and the V5 link 5. And is stored in a memory (not shown) in the access node 3.
- the information includes ⁇ D information of access node 3, V5 related interface device accommodation information (including port information), subscriber accommodation information (including correspondence table between logical ID and physical port), V5 resource Link information, V5 control channel accommodation information, and the like.
- Pieces of information are basically input from the maintenance console 9, are subjected to data check, and are stored in the hard disk 1 () in the maintenance console 9 as an initialization information database.
- An important point in the access node V5 system initialization process is that the setting of subscriber accommodation information and various V5 related information to the access node 3 must be performed in synchronization with the end exchange 1. And that the information content is consistent.
- some of the subscriber accommodation information, the accommodation information of the V5 link, the V5 control channel information, etc. There is information that is specified by the mobile switching system 1 and requires a procedure such as adding information on the access node 3 side to the specification. In such a case, the relevant database set in the end exchange 1 is transmitted to the maintenance and operation console 9 using the communication link 8.
- the maintenance person adds, edits, and processes necessary data to the contents of the related database at the maintenance operation console 9 and notifies the access node 3 of the result data.
- Hard disk as initialization information database
- the fault information (alarm) generated in the access node 3 described above is detected in the fault receiving unit 307 of each access node, and is stored in the memory 3072 by the microprocessor 307. Written to the alarm bitmap table.
- the alarm bit map table displays alarms for each unit in the access node and alarms for each physical link. Alarms are classified into categories such as critical alarms and major alarms according to their urgency.
- the alarm detected by the access node 3 updates the bit information of the bit location corresponding to the alarm in the alarm bitmap table corresponding to the category of the alarm.
- the V5 interface protocol is used to control the outgoing and incoming calls of the subscriber 4.
- PSTN Analog Subscriber
- ISDN Digital Subscriber
- PSTNS ignaling Protocol 1 is a protocol for transmitting and receiving off-hook signals and on-hook signals from telephones, response signals to telephones, and charging signals via the V5 link.
- the protocol configuration is as shown in Fig. 4, but Messagetye's "signa 1" is used for this subscriber test.
- the “signa 1” message is used to communicate the status of the PSTN subscriber line to end exchange 1 or to signal that the line conditions specified in access 3 be established. You.
- “test” and “testresult” are added as Information elements (information elements).
- Test st is a test request from the end exchange 1 to the access node 3. Then, the type of test is defined as shown in FIG. 4, for example, as t es t t y p e of this “t es t” sig n a 1. Further, testcondnition of "test" sigrial is information for indicating whether or not there is a test during a call.
- the “te stre s e u lt” of I n f o r ma a t i o e n e m e n t is information for notifying the test result from the access node 3 to the end exchange 1.
- tesrtresult indicates the contents of the test result or the test failure.
- the access node (AN) 3 When the access node (AN) 3 receives the “test” signa 1 from the end exchange (LE) 1, it returns a Signal ACK, and tests the indicated user port for the indicated item using the test unit 106. Execute. For Access Node 3, if the test is completed based on the result report from Test Unit 3 () 6,
- Control Subscriber 1 is used for ISDX-compatible digital subscribers, unlike PSTN-compatible analog subscribers.
- This Control Protocol is also used in PSTN to control blocking of user ports.
- the Port Control Protocol of the Control Protocol is used. use.
- the protocol configuration is as shown in Fig. 6, the force "Mssagetpepe", "portcontro1", is used for this subscriber test.
- the message “portcontro1” is used to transmit information from the end exchange 1 to the access node 3 or from the access node 3 to the end exchange 1.
- “te st;” and “te st res u lt” are added as Info r ma t i o e n e m e n t (information elements).
- Te st is a test request from the end exchange 1 to the access node 3. Then, the type of test is defined as shown in FIG. 6, for example, as t es t t y p e of this “t es t” s ig n a l.
- t es t con d di ti lon of “t es t” s ig n a l is information for instructing the presence or absence of a test during a call, and, in the case of a l o p b a c k instruction, also notifies control or restoration.
- the “testresult” of the information element is information for notifying the test result from the access node 3 to the end exchange 1.
- the testresult in this information indicates the content of the test result or the test failure, and indicates that control or restoration has been completed in the case of loopback.
- signa 1 is received, a Signal ACK is returned, and the test of the indicated item is executed by the test unit 3 () 6 for the indicated user port.
- test unit 3 () 6 for the indicated user port.
- “testresu 1 t” signa 1 is returned to the end exchange 1.
- the end exchange ⁇ receives this signal, it sends a Signa 1 ACK to the access node 3. I will send it back.
- the loopback test when the release command is not received, the loopback test is restored using the timer time-out, and the access node 3 returns this to the end exchange 1.
- Figure 7 shows the flow of this message.
- Subscriber tests such as subscriber line and subscriber circuit tests, are conducted as specified by the maintenance and operation console 9 of the end exchange 1. Subscriber tests include automatic tests and manual tests.
- the automatic test is a method of performing a specific item of the manual test to a plurality of subscribers-performed by a software on the operation and maintenance console 9. This corresponds to the automatic repetition of the manual test.
- the manual test by entering the subscriber's telephone number from the maintenance console 9, the items of the above-described test types (see Figs. 4 and 6) are executed by software for the subscriber under test.
- FIG. 8 which shows the entire flow of the procedure for the subscriber test
- the maintenance person inputs the subscriber number (telephone number) from the maintenance operation console 9 and starts the test.
- Step S8001 The maintenance console 9 searches the database 10 to determine whether the subscriber under test is a subscriber accommodated in the access node 3 or not. If it is a containment participant, it collects V5 interface ID and port (user port) ID (S802).
- the processing is left to the subscriber test system for directly storing the exchange (S803).
- the items of the voltage measurement test are performed (S804).
- the measured voltage value and the threshold value are compared. If the measured value is larger than the threshold value, the process proceeds to S8 () 7 (S8 () 5). On the other hand, if the measured value is smaller than the threshold value, the items of resistance measurement and capacitance measurement are performed (S806).
- the measurement is repeated until the measurement items in S8 () 4 and S806 are performed for all the lines (S807). If all measurements have been made, in the case of an analog subscriber, the subscriber circuit test is performed and the process ends (S808). In the case of a digital subscriber, a loop b ack test is performed in S808.
- Test type In this example, information corresponding to t e s t t y p e 0, 1, and 2 in the protocol shown in Fig. 4
- V 5 protocol processing unit 1 0 2 which is requested to start the test from, V 5 interface of interest to check whether Akutibu (S 9 0 2) if t not active, V 5 Pro
- the protocol processing unit 1 () 2 notifies the maintenance and operation console 9 that the test is not possible and ends (S 903, 904).
- active-The V5 protocol processing unit 102 determines whether the subscriber under test is busy. (S90 ⁇ ).
- the V5 protocol processing unit 3 () 7 determines whether or not it is a compulsory test. If not, the process proceeds to S904. If the object is a compulsory test, the process proceeds to S907 (S905, 906). The determination of S 905 and S 906 may be performed by the V5 protocol processing unit 307 of the access node 3.
- the V5 protocol processing unit 102 uses the protocol shown in FIG. 4 for the V5 protocol processing unit 3107 of the access node 3 via the V5 interface unit 101 via the V5 interface unit 101. A subscriber line test is instructed (S907).
- the V5 protocol processing unit 307 of the access node 3 returns an ACK for notifying the reception of the “test” signal to the end exchange 1 via the V5 link interface unit 301 ( S9 () 8).
- the V5 protocol processing unit 307 After receiving the test instruction, the V5 protocol processing unit 307 first checks the busy (call) status of the subscriber under test. If unused or compulsory test is performed, the test is continued. On the other hand, if it is in use and subject to non-compulsory test, the test is not performed and ACK to that effect is returned to end exchange 1 (S9 () 9) .
- V5 protocol processing unit 3 () 7 is V5 protocol interface unit 3 () 4 Then, the relay of the subscriber circuit 302 corresponding to the port ID is operated to connect the subscriber line 2 to the test unit 303 (S910).
- the V5 protocol processing unit 307 instructs the test unit 3 () 6 to measure the AC voltage (S ⁇ b> 911).
- the test unit 306 performs the AC voltage measurement of the subscriber line to be tested, and returns the measured value to the V5 protocol processing unit 307 (S912).
- the V5 protocol processing unit 307 receives this measurement value from the test unit 306, and uses the “testresult” of the protocol shown in FIG. 4 to execute the V5 protocol processing unit 10 of the end exchange 1. Send to 2 (S913).
- the V5 protocol processing unit 102 of the end exchange 1 receives “testresult” via the V5 interface unit 101, returns an ACK to the access node 3, and returns the result to the maintenance operation console 9.
- S911 Maintenance and operation console 9 receives the results, displays them on the screen, and outputs the results to a hard disk or printer as necessary. Also, a threshold is set. To display OK or NG visually for the result (S915)
- test equipment 7 In the subscriber test, if a conversation is required between the test equipment 7 on the end exchange 1 and the subscriber 4 under test, the test equipment 7 can be tested using the BCC (Bearer Channel Connection) protocol of the V5 system.
- BCC Breast Channel Connection
- the test voice line 6 of the end exchange 1 to which the is connected is connected to the subscriber 4 to be tested.
- V5 interface protocol for call processing V5 system
- high-speed processing is possible, and the same test time (1) as the testing for subscribers directly accommodating exchanges is possible. Tests can be performed in the order of several seconds per subscriber).
- a subscriber test including a subscriber circuit arranged in an access node and a subscriber line accommodated in the subscriber node can be performed by a V5 system (V5.1, V5.1) of a standardized communication protocol. 5.2 interface protocol), even if the access node and the end exchange are provided by different equipment, the protocol conversion to connect the two is possible.
- V5 system V5.1, V5.1
- 5.2 interface protocol a standardized communication protocol.
- Software that requires a database for converting subscriber management data, etc. Xa development and additional equipment Development costs can be significantly reduced.
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99901115A EP1146717B1 (en) | 1999-01-20 | 1999-01-20 | Subscriber testing system |
DE69937370T DE69937370T2 (de) | 1999-01-20 | 1999-01-20 | Apparat zur prüfung eines teilnehmers |
PCT/JP1999/000179 WO2000044154A1 (fr) | 1999-01-20 | 1999-01-20 | Systeme de controle d'abonne |
US09/815,843 US6826261B2 (en) | 1999-01-20 | 2001-03-22 | Subscriber testing system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP1999/000179 WO2000044154A1 (fr) | 1999-01-20 | 1999-01-20 | Systeme de controle d'abonne |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/815,843 Continuation US6826261B2 (en) | 1999-01-20 | 2001-03-22 | Subscriber testing system |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000044154A1 true WO2000044154A1 (fr) | 2000-07-27 |
Family
ID=14234739
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1999/000179 WO2000044154A1 (fr) | 1999-01-20 | 1999-01-20 | Systeme de controle d'abonne |
Country Status (4)
Country | Link |
---|---|
US (1) | US6826261B2 (ja) |
EP (1) | EP1146717B1 (ja) |
DE (1) | DE69937370T2 (ja) |
WO (1) | WO2000044154A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003079658A1 (fr) * | 2002-03-20 | 2003-09-25 | Fujitsu Limited | Procede de transmission de donnees et dispositif de transmission |
US7706287B2 (en) | 2002-05-22 | 2010-04-27 | Nec Corporation | Communication system multiplexer included in the system, line performance test method and recording medium having program recorded thereon |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100859408B1 (ko) * | 2002-09-28 | 2008-09-22 | 주식회사 케이티 | 홈오토 통신을 위한 디지털 가입자망 단말기 및 디지털 가입자망 접속장치 |
KR100521153B1 (ko) * | 2003-02-17 | 2005-10-12 | 삼성전자주식회사 | 교환기와 가입자 망을 위한 인터페이스 자동 검사 방법 |
US7681093B2 (en) * | 2006-03-31 | 2010-03-16 | Intel Corporation | Redundant acknowledgment in loopback entry |
US9473451B2 (en) * | 2012-09-21 | 2016-10-18 | Ixia | Methods, systems, and computer readable media for providing mapping information associated with port control protocol (PCP) in a test environment |
US11943248B1 (en) | 2018-04-06 | 2024-03-26 | Keysight Technologies, Inc. | Methods, systems, and computer readable media for network security testing using at least one emulated server |
US10708163B1 (en) | 2018-07-13 | 2020-07-07 | Keysight Technologies, Inc. | Methods, systems, and computer readable media for automatic configuration and control of remote inline network monitoring probe |
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JPH01175348A (ja) * | 1987-12-28 | 1989-07-11 | Hitachi Ltd | 遠隔制御による加入者線路試験方式 |
JPH0583376A (ja) * | 1991-09-25 | 1993-04-02 | Nec Corp | 加入者試験接続方式 |
JPH07321916A (ja) * | 1994-05-27 | 1995-12-08 | Nec Corp | 加入者試験装置 |
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JPH04162863A (ja) * | 1990-10-26 | 1992-06-08 | Fujitsu Ltd | 加人者系伝送装置の試験方式 |
JP3077097B2 (ja) | 1992-06-16 | 2000-08-14 | 富士通株式会社 | 加入者線試験方式 |
JPH0787193A (ja) * | 1993-09-09 | 1995-03-31 | Fujitsu Ltd | 加入者系試験方法 |
FI107856B (fi) * | 1994-06-15 | 2001-10-15 | Nokia Networks Oy | Tilaajamultiplekseri, puhelinjärjestelmä, sekä menetelmä tilaajaliitännän kunnon viestittämiseksi puhelinkeskukselle |
EP0880257A1 (en) * | 1997-05-19 | 1998-11-25 | Harris Corporation | Testing of telecommunication subscriber lines |
GB2326305A (en) * | 1997-06-13 | 1998-12-16 | Schlumberger Ind Ltd | Local exchange testing |
FI106688B (fi) * | 1997-12-17 | 2001-03-15 | Nokia Networks Oy | Menetelmä ISDN-käyttäjäportin tilavalvonnan toteuttamiseksi |
US6259676B1 (en) * | 1998-06-17 | 2001-07-10 | Nokia Telecommunications Oy | Upgrading of subscriber connection |
JP4093669B2 (ja) * | 1999-02-23 | 2008-06-04 | 富士通株式会社 | 加入者試験システム |
-
1999
- 1999-01-20 EP EP99901115A patent/EP1146717B1/en not_active Expired - Lifetime
- 1999-01-20 DE DE69937370T patent/DE69937370T2/de not_active Expired - Lifetime
- 1999-01-20 WO PCT/JP1999/000179 patent/WO2000044154A1/ja active IP Right Grant
-
2001
- 2001-03-22 US US09/815,843 patent/US6826261B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH01175348A (ja) * | 1987-12-28 | 1989-07-11 | Hitachi Ltd | 遠隔制御による加入者線路試験方式 |
JPH0583376A (ja) * | 1991-09-25 | 1993-04-02 | Nec Corp | 加入者試験接続方式 |
JPH07321916A (ja) * | 1994-05-27 | 1995-12-08 | Nec Corp | 加入者試験装置 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003079658A1 (fr) * | 2002-03-20 | 2003-09-25 | Fujitsu Limited | Procede de transmission de donnees et dispositif de transmission |
US7706287B2 (en) | 2002-05-22 | 2010-04-27 | Nec Corporation | Communication system multiplexer included in the system, line performance test method and recording medium having program recorded thereon |
Also Published As
Publication number | Publication date |
---|---|
DE69937370T2 (de) | 2008-07-24 |
EP1146717A1 (en) | 2001-10-17 |
DE69937370D1 (de) | 2007-11-29 |
EP1146717A4 (en) | 2004-12-22 |
US20010013106A1 (en) | 2001-08-09 |
US6826261B2 (en) | 2004-11-30 |
EP1146717B1 (en) | 2007-10-17 |
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