EP1118202A1 - Method for testing subscriber lines - Google Patents
Method for testing subscriber linesInfo
- Publication number
- EP1118202A1 EP1118202A1 EP99969872A EP99969872A EP1118202A1 EP 1118202 A1 EP1118202 A1 EP 1118202A1 EP 99969872 A EP99969872 A EP 99969872A EP 99969872 A EP99969872 A EP 99969872A EP 1118202 A1 EP1118202 A1 EP 1118202A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- subscriber
- connection
- subscriber line
- error
- test
- 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.)
- Withdrawn
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
- H04M3/302—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop using modulation techniques for copper pairs
- H04M3/303—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop using modulation techniques for copper pairs and using PCM multiplexers, e.g. pair gain systems
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/005—Interface circuits for subscriber lines
Definitions
- the invention relates to a method for testing subscriber lines, including the associated subscriber line circuit and connected subscriber terminal of a digital telecommunications system.
- Quasi-permanent describes the deviation from a permanent test determination, which results on the one hand from the fact that a digital signal processor, as mentioned, has another main task in this context and, on the other hand, that it is responsible for a plurality of subscriber connections, if necessary individual connections are then only available in time-division multiplex mode.
- the object of the invention is now to further increase the customer benefit by taking advantage of the possibilities of such an integrated test concept.
- the test result data which is determined decentrally in the known manner, is collected at a central location, taking into account specific selection criteria, and is transmitted to specific locations in the subscriber line area to which the subscriber line belongs, in specific needs.
- the function tests can be carried out on a single subscriber line in minutes.
- test result data collected at a central point are transmitted to the location at which interference suppression measures are currently being carried out, provided that they relate to the geographic area of interest.
- This measure brings advantages in the case of interference suppression or maintenance measures in which there is a risk of causing interference on neighboring subscriber lines, for example in the case of shunting measures. If the maintenance technician has test result data available immediately after the routing of a subscriber connection line in a distribution box, which relates to the other subscriber connection lines accessible in this distribution box and which are also up-to-date because of the quasi-permanent check according to the invention, such subsequent errors can be recognized and immediately rectified again.
- a time restriction is also made to such test result data that were created in close proximity to the execution of the measure at the fault location. In this way, a possible causal connection between the interference suppression measure and the subsequent error can be recognized even better.
- incoming telephony connections can provide information about the presence of a malfunction in the form of an announcement, for which purpose a conference connection is established.
- FIG. 1 shows the block diagram of a telephone switching system in which the line test is carried out centrally
- FIG. 2 shows a corresponding representation of a telephone switching system in which the line test is carried out in the manner according to the invention.
- FIG. 1 a so-called digital subscriber line unit DLU, a line trunk group LTG, a central switching network SN, and a central coordination processor CP are shown as essential components of a telephone switching system.
- Subscriber lines TL are connected to the digital subscriber line unit DLU and connect to subscriber terminals, not shown here. In practice, this can be up to 1000 lines. Furthermore, connecting lines for connection to private branch exchanges can also be connected, for which the same applies with regard to the use of the method according to the invention, but which are not mentioned further below.
- the subscriber lines open in the digital subscriber line unit DLU in subscriber line-specific subscriber line circuits SLC. In the present case, 16 such subscriber line circuits are combined to form a subscriber line module SLMA.
- a common measuring device MK is provided for centralized testing of the subscriber lines TL mentioned, together with the subscriber terminals connected to them and the line-specific subscriber line circuits SLC.
- the optional connection of this measuring device to the above-mentioned subscriber-specific components takes place via a coupler module KG of the digital line unit DLU.
- test connections are made to an external test system ET, which lead via the telephone network PSTN, which also includes the telephone exchange shown and described in extracts.
- the figure also shows a maintenance center BCT belonging to the switching center, from which the tests to be carried out are initiated.
- the aforementioned subscriber line circuits SLC essentially fulfill the functions of subscriber line feed, overvoltage protection, call feeding, receiving and sending signaling from and to the terminals, coding and filtering, and two-wire, four-wire implementation.
- a digital signal processor which can be provided either individually for the subscriber, that is to say as part of a subscriber line circuit or for a group of, for example, four or eight subscriber line circuits, that is to say as part of the subscriber line group SLMA.
- test functions are thus decentralized and integrated in the subscriber line circuits SLC or in the subscriber line assemblies SLMA summarizing such - subscriber line circuits.
- ILTF Integrated Line Test Functions
- the decentralized test result data are reported to the maintenance center BCT / ILMP and collected there.
- the measurement results can be evaluated using existing test systems ET, which is why such is also indicated in FIG. 2.
- the additional designation ILMP (Integrated Line Maintenance Position) in the designation BCT, for which the maintenance center points, indicates that the test functions are carried out automatically.
- decentralized measuring devices MK and the coupler modules required for their connection can be dispensed with.
- the collected test result values are transferred to certain locations of the subscriber access area to which the subscriber lines from which the test results originate, taking into account specific selection criteria.
- test result data which are related to the connections accessible there can, according to the invention, be transferred to this location and made recognizable with a suitable device connected there. Because of the quasi-permanent determination of the test data, the test data is up-to-date, so that the reaction to the fault clearance measures or maintenance measures such as rearrangements can be recognized on site. In particular, it can be seen if consequential errors occur in the course of the measures carried out, which can then also be eliminated. - The uniqueness of a relationship between the measure taken and the test result obtained can be increased by transferring test result data to such is limited, which occurred in close proximity to the period of implementation of the measures.
- the transmission of test result data from the collection point can also be used to notify an affected telecommunications subscriber of an error in the course of the establishment of a telecommunications connection or while the telecommunications connection exists.
- the error message can occur during the occurrence of the dial tone, in the case of an incoming connection in the form of an announcement, for which purpose a conference connection is established, in which the maintenance center is involved.
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Exchanges (AREA)
- Interface Circuits In Exchanges (AREA)
- Telephonic Communication Services (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19845072 | 1998-09-30 | ||
DE19845072 | 1998-09-30 | ||
PCT/DE1999/003101 WO2000019690A1 (en) | 1998-09-30 | 1999-09-27 | Method for testing subscriber lines |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1118202A1 true EP1118202A1 (en) | 2001-07-25 |
Family
ID=7882950
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99969872A Withdrawn EP1118202A1 (en) | 1998-09-30 | 1999-09-27 | Method for testing subscriber lines |
Country Status (7)
Country | Link |
---|---|
US (1) | US7286952B1 (en) |
EP (1) | EP1118202A1 (en) |
JP (1) | JP4082867B2 (en) |
CN (1) | CN1143507C (en) |
BR (1) | BR9914214A (en) |
CA (1) | CA2345676A1 (en) |
WO (1) | WO2000019690A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10137219C1 (en) * | 2001-07-30 | 2003-04-03 | Siemens Ag | Electronic dialing system and method for prequalifying subscriber lines |
DE10226350B4 (en) * | 2002-06-13 | 2004-09-09 | Infineon Technologies Ag | Method and device for determining the electrical properties of a data line |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6221244A (en) | 1985-07-22 | 1987-01-29 | Hitachi Ltd | Semiconductor device |
JPS6315556A (en) | 1986-07-08 | 1988-01-22 | Nec Corp | Controlling system for sending dial tone |
DE59108356D1 (en) | 1990-04-12 | 1997-01-02 | Siemens Ag | Method for checking transmission properties of a subscriber line circuit |
DE4210622C1 (en) | 1992-03-31 | 1993-07-29 | Siemens Ag, 8000 Muenchen, De | |
JPH05292188A (en) | 1992-04-10 | 1993-11-05 | Nec Corp | Fault information noticing system for electronic exchange |
JPH0597156U (en) | 1992-05-26 | 1993-12-27 | 積水化学工業株式会社 | Telephone exchange |
ATE174180T1 (en) | 1992-07-30 | 1998-12-15 | Siemens Ag | CONTROL METHOD FOR A TEST SYSTEM |
JPH06232968A (en) | 1993-02-02 | 1994-08-19 | Nippon Telegr & Teleph Corp <Ntt> | Operation system for communication network |
JPH0787193A (en) | 1993-09-09 | 1995-03-31 | Fujitsu Ltd | Subscriber system test method |
US5615225A (en) | 1994-02-09 | 1997-03-25 | Harris Corporation | Remote measurement unit containing integrated line measurement and conditioning functionality for performing remotely commanded testing and conditioning of telephone line circuits |
JP3305891B2 (en) | 1994-09-13 | 2002-07-24 | 株式会社東芝 | Key telephone equipment |
US5802105A (en) | 1994-11-30 | 1998-09-01 | Qualcomm Incorporated | Method and apparatus for testing a digital communication channel |
US5680391A (en) * | 1995-06-20 | 1997-10-21 | Harris Corporation | Arrangement for testing telephone subscriber line circuit via B-ISDN channel linking central office test system and metallic channel unit installed in digital loop carrier remote terminal |
GB2310571B (en) * | 1996-02-21 | 2000-06-28 | Dsc Communications | Testing a subscriber terminal of a wireless telecommunications system |
FI102124B1 (en) * | 1996-03-07 | 1998-10-15 | Nokia Telecommunications Oy | Remote testing of a local loop in a radio system implemented by a wireless local loop |
US5974115A (en) * | 1996-11-15 | 1999-10-26 | Bellsouth Intellectual Property Managment Corporation | System and method for testing subscriber lines and terminating equipment from a service platform |
-
1999
- 1999-09-27 WO PCT/DE1999/003101 patent/WO2000019690A1/en active Application Filing
- 1999-09-27 CN CNB998138967A patent/CN1143507C/en not_active Expired - Fee Related
- 1999-09-27 CA CA002345676A patent/CA2345676A1/en not_active Abandoned
- 1999-09-27 EP EP99969872A patent/EP1118202A1/en not_active Withdrawn
- 1999-09-27 US US09/806,563 patent/US7286952B1/en not_active Expired - Fee Related
- 1999-09-27 BR BR9914214-7A patent/BR9914214A/en not_active IP Right Cessation
- 1999-09-27 JP JP2000573066A patent/JP4082867B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO0019690A1 * |
Also Published As
Publication number | Publication date |
---|---|
US7286952B1 (en) | 2007-10-23 |
CN1143507C (en) | 2004-03-24 |
CA2345676A1 (en) | 2000-04-06 |
JP2002526987A (en) | 2002-08-20 |
BR9914214A (en) | 2001-07-03 |
WO2000019690A1 (en) | 2000-04-06 |
CN1328741A (en) | 2001-12-26 |
JP4082867B2 (en) | 2008-04-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69629268T2 (en) | Cell testing in a cellular transmission network | |
DE2713937B1 (en) | Circuit arrangement for a fault data reporting system in telecommunications, in particular telephone systems | |
DE2826063C2 (en) | ||
EP1118202A1 (en) | Method for testing subscriber lines | |
EP0163288B1 (en) | Method for testing switched connexions of a multiplex space division switching network | |
EP0471216A2 (en) | Method for testing the line connection before switching-over from a telephone exchange which is to be disabled, to a new digital exchange ready to be put into operation | |
DE19744412A1 (en) | Central exchange trunk test method | |
DE2304923A1 (en) | PROCEDURE FOR TESTING FOUR-WIRE CONNECTIONS BETWEEN TWO SWITCHING STATIONS OF A REMOTE INDICATION NETWORK TO BE CONNECTED | |
DE3403454C2 (en) | ||
DE2905426C2 (en) | Method for testing the functionality of speech memories and other devices of a PCM time division multiplex switching unit used in connection with the establishment of conference connections | |
DE2826062A1 (en) | INDIRECTLY CONTROLLED SWITCHING SYSTEM WITH TIME CHANNEL LINKS, IN PARTICULAR TELEPHONE SWITCHING SYSTEM | |
EP0817512A2 (en) | Method for connecting subscribers to the telecommunication systems of a plurality of network servers | |
EP0598931B1 (en) | Method for the control of switched telephone connections, especially permanent switched telephone connections | |
DE3212237C2 (en) | Circuit arrangement for centrally controlled telecommunications systems, in particular telephone extension systems, with central and decentralized devices (decentralized reset units) controllable via bundles of data transmission lines | |
DE2518470C3 (en) | Method and circuit arrangement for testing connection paths in switching systems | |
DE3204671C2 (en) | ||
DE3208514C2 (en) | Circuit arrangement for centrally controlled telephone systems with node and terminal systems as well as with a central character channel | |
DE3037419C2 (en) | Circuit arrangement for monitoring impermissible connections in a switching network for switching systems, in particular telephone switching systems | |
DE3100969C2 (en) | Coupling circuit for monitoring a large number of communication lines | |
EP1371237B1 (en) | Method for managing monitoring data | |
DE3428603C2 (en) | Method for testing the signal converter multiplexer in a PCM transmission link and test arrangement for carrying out the method | |
DE3207677A1 (en) | Circuit arrangement for performing ancillary functions in conjunction with connection circuits forming basic assemblies | |
DE3037691C2 (en) | Circuit arrangement for generating artificial incoming external traffic in telecommunications, in particular telephone switching systems | |
EP0539761B1 (en) | Method and system to detect a faulty channel within a channel group | |
EP1210813B1 (en) | Locating a faulty link section in an active long-term connection |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20010321 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
RBV | Designated contracting states (corrected) |
Designated state(s): DE FR GB |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
19A | Proceedings stayed before grant |
Effective date: 20050718 |
|
19F | Resumption of proceedings before grant (after stay of proceedings) |
Effective date: 20100301 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: NOKIA SIEMENS NETWORKS GMBH & CO. KG |
|
17Q | First examination report despatched |
Effective date: 20100507 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20100918 |