WO2000001134A1 - Netzknoten mit plattform für automatisierte dienste - Google Patents
Netzknoten mit plattform für automatisierte dienste Download PDFInfo
- Publication number
- WO2000001134A1 WO2000001134A1 PCT/EP1999/004302 EP9904302W WO0001134A1 WO 2000001134 A1 WO2000001134 A1 WO 2000001134A1 EP 9904302 W EP9904302 W EP 9904302W WO 0001134 A1 WO0001134 A1 WO 0001134A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- service
- network node
- network
- services
- node according
- Prior art date
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Classifications
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- 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
- H04M3/4228—Systems providing special services or facilities to subscribers in networks
Definitions
- Network node with platform for automated services
- the invention relates to a network node of a telecommunications network, which has a control device for executing commands and command sequences of switching-related work steps for carrying out switching-controlled services for participants in the network.
- Network nodes of this type are well known in modern telecommunications networks, in particular telephone networks or other switching networks, and are used for the fully or partially automated execution of network services.
- the network nodes considered here are primarily line groups, which connect subscriber lines to the network, and switching centers, which are used to link subscriber connections with one another or with other network nodes or telecommunication networks, but also other network nodes, e.g. a service control station for the administration and implementation of certain network services.
- E SD digital switching system cf. e.g. Karlheinz Neufang, "The digital switching network in the EWSD system", telcom report 4 (1981), p. 28.
- an EWSD system has a central processor for controlling the connections to control the E SD system and a number of secondary processors, each of which controls a connection group of the EWSD.
- the said networks offer their subscribers further additional services.
- Many of these services have hitherto only been able to be implemented using a so-called manual operator, that is to say a person working on the part of the telecommunications network Processing certain services or to perform certain tasks for services.
- Services e.g. an adaptation to changed system conditions, be easy to maintain, and an adaptation of the services in a simple manner to the wishes of the service provider - the i.a. may be different from the network operator - may be possible.
- a network node of the type mentioned at the outset which is equipped with a platform which is set up for the automated execution of services in accordance with service application programs stored by the control device and which has a number of service modules which are used to carry out specific tasks of services serve from on the plat form running service application programs can be called and cover all the tasks required for the execution of the automated services on the part of the network node.
- the task is accomplished in a surprisingly simple way.
- the service modules which use the resources already available in a network node to carry out service-related subtasks and combine them into specific tasks, a platform can be created on the basis of which services can be implemented in a simple manner.
- the platform can be implemented entirely in the form of software. Access to other resources is only possible insofar as these resources are provided in the network anyway.
- the network operator can implement his own services in the switching center, advantageously eliminating the need to install additional hardware components and at the same time enabling the creation of operator-specific services.
- the network node is a switching station of the telecommunications network, in particular a digital switching system, the control device of which has a central processor unit.
- At least one of the service modules is set up for requesting operating resources, in particular operating resources of the telecommunications network.
- an abort of the automatic execution with subsequent transfer of the service to a manual operator is provided, which can be triggered by the service at predetermined points in the service sequence and / or by a signal from the subscriber using the service. This enables a more flexible response to the wishes of the participant.
- the automated service flow can use a result of the manual operator for service handling.
- the return information can, for example, be entered by the manual operator on his console and, e.g. can be released for the service module and / or queried by the service module by pressing a button on the console provided for this purpose.
- the temporary transfer of the service is provided for entering a search term and / or performing a search with the involvement of the manual operator. In certain cases, this can lead to a significant simplification of the service treatment.
- At least one of the service modules can also be used to enter a search term using a speech recognition device and to carry out a search using databases on the part of the telecommunications network.
- several instances of the platform can be executed at the same time, each instance being set up for the execution of a service or service order. This allows the handling of several service orders, for example different subscribers, or different services at all in the same network node or the same switching station.
- a favorable form of implementation is if one instance of a secondary processor unit is assigned to the control unit for executing the services or service orders of the instance. This takes advantage of the extensive independence of the program flow of such secondary processors; The prerequisite is, of course, that the network node has secondary processors with the appropriate performance.
- the number of instances executed at the same time is advantageously variable, e.g. on a changing traffic volume.
- duplicate instances are used.
- at least two instances are assigned to the same service execution, of which an active instance carries out the service execution, while at least one passive instance is held ready to take over the service execution in the event of an error or other predetermined exceptional state.
- FIG. 1 shows the program hierarchy of the platform according to the invention in a symbolic diagram
- FIG. 2 shows the sequence of the service on which the exemplary embodiment is based on the basis of a schematic illustration of the network nodes and network subscribers involved
- FIG. 1 shows the program hierarchy of the platform according to the invention in a symbolic diagram
- FIG. 2 shows the sequence of the service on which the exemplary embodiment is based on the basis of a schematic illustration of the network nodes and network subscribers involved
- the embodiment relates to the automatic realization of a service for completion of a subscriber connection, which the sake of brevity referred to as ACC ( ⁇ Automated Call Completion ') below.
- a platform is installed in the switching center, which largely takes over the tasks of the manual operator for the application service and is also referred to below as a "virtual operator".
- a platform is understood to mean only a software platform, that is to say a basic system, This platform serves as the basis and starting point for the execution of further application programs.
- This platform is implemented entirely by software and does not require any additional hardware elements for the implementation of the services on the exchange.
- Via standard inputs of the operator interface used for the configuration for example the So-called MML (Man-Machine Language), the platform can be configured and activated.
- MML Man-Machine Language
- the hierarchy of the program levels on which the virtual operator platform according to the invention is based is shown in the diagram in FIG. 1.
- the course of a service is defined in a service application program ANW, which is started by a corresponding input via the MML interface or by a request from another network node.
- Previously known service application programs are written in assembler code or another machine-oriented programming language.
- the level ASM of the assembly instructions includes in particular the individual direct calls of the machine instructions, as well as one
- the assembler routines AGR are used to carry out switching-related, elementary work steps on the part of the network node, such as, for example
- Linking voice channels in particular from two subscribers, from several subscribers or from one subscriber, to an announcement, a ringing tone or the like.
- a platform VOP which mediates between the service application program ANW on the one hand and the assembler level ASM including the Asse blerroutinen AGR.
- the VOP platform consists of a number of DMO service modules, each of which is used to carry out a task or task group for a service.
- Service modules DMO are written in assembler code and call the assembler routines AGR and machine instructions; in special cases one service module DMO can also call another.
- the tasks assigned to the DMO service modules are specific service-related tasks that generally comprise a sequence of work steps at the assembly level and may can have complex branching or repeating structures. Examples of such tasks are:
- the virtual operator VOP can support both analog and digital voice services or analog or digital data services.
- an application program ANW for automated services can be implemented, the invention advantageously also enabling the automated execution of services previously performed by manual operators; this is where the term "virtual operator" comes from.
- the application program is assigned an instance of the virtual operator VOP
- Application program ANW only uses calls to the service modules DMO. As a result, the implementation of the application program ANW is solved from the machine-oriented level and can be carried out more flexibly.
- An example of an application program which is used in the following to illustrate the invention is the already mentioned ACC service for realizing a service for the completion of a subscriber connection.
- This service enables a network subscriber TNA, who has subscribed to the corresponding service, to set up a telecommunications connection to a second subscriber. he TNB, the calling subscriber TNA not being able to dial the subscriber TNB he wants directly, for example because he does not know his phone number or the self-dialing traffic between the two subscribers is excluded.
- the invention is not limited to the ACC application shown here as an exemplary embodiment. Rather, on the basis of the invention, the realization of any other automated services is readily possible for the person skilled in the art.
- the modules DMO shown in FIG. 1 are the service modules used for the implementation of the ACC service. Specifically, these are: a call handling service module VCC (Virtual Operator Call Control ') for processing and managing the connections assigned to the service; a charging service module CDV ( ⁇ Call Data Handling of Virtual Operator ') for billing the tasks performed by the service; and a speech processing service module ACP ( x Automated Call Processing ') for communication of the service with network-connected speech resources, for example a peripheral device for voice announcements or a speech recognition system.
- the speech handling module ACP controls the interactive communication between the speech resources with the subscriber.
- the DMO modules can also take on a group of tasks; The required task can be differentiated, for example, using a type parameter, which is transferred to the module when it is called.
- the calling subscriber TNA dials the service number of the ACC service, whereupon a connection to a manual operator MOP is established in a known manner.
- This asks the subscriber TNA the information required to determine the number of the desired subscriber TNB and, if necessary, performs a search in a database.
- the so obtained The manual operator MOP now enters the number of the desired subscriber B together with the phone number of the calling subscriber A on his console. For example, by pressing a button on the console provided for this purpose, the manual operator MOP now switches on
- connection of the calling subscriber is redirected from the console of the manual operator MOP to the network node KNO of the virtual operator. This can still be carried out by the console as a result of the call to step (2), or it can be initiated by the virtual operator using an appropriate service module.
- the handling of the connections is perceived by the virtual operator from the call handling service module VCC.
- the manual operator MOP is again available for other participants, if necessary after a waiting time (so-called x post call time ').
- TNB are manufactured.
- the virtual operator asks for the implementation of this participant interaction Said treatment furnished resources SPR se, for example a so-called IVPS Resource ( ⁇ Interactive Voice Processing System ") with a speech recognition system and an announcement module.
- IVPS Resource ⁇ Interactive Voice Processing System
- the control of the operating equipment remains on the part of the virtual operator, namely with a voice treatment service module ACP provided for this purpose, which mediates between the IVPS operating equipment and the service application program of the ACC service. For example, an announcement of the type "The desired number is 12 34 56; do you want to speak a message for this subscriber, or a connection to this subscriber, or terminate this service immediately?
- Participant TNB set up. This is again done using the call handling service module VCC. If there is a connection to the subscriber TNB, the service module VCC connects (6) the connections of the two subscribers to a call connection. When the process is ended, the virtual operator goes into free status or accepts the processing of the next service order.
- Step (1) of the above procedure takes place in the form presented here with the participation of a manual operator MOP and thus not an actual part of the ACC service.
- the automated implementation of this first step e.g. in the form of a further service module DMO would make it possible to carry out the entire sequence in the ACC service automatically. However, this would require speaker-independent speech recognition in order to be able to offer the service to any group of subscribers. Therefore, according to the knowledge of the applicant, the automation of this step is not yet possible.
- the dialog required here can be very complex and therefore possibly a "human intelligence" - after all, the operator must not only carry out the query of spoken information, but also the assessment of which information is necessary in the individual case and which additional information Information is expedient and must be specifically queried from the subscriber or from databases, etc.
- the entire process is basically automated with the help of the virtual operator VOP, without the intervention of the manual operator.
- the number of instances of the virtual operator VOP in the network node is not limited and can take into account the traffic volume in the switching center, taking into account the available resources, such as storage spaces, Voice channels, etc. can be adjusted.
- the instances are set up by entries via the user interface.
- step (2) of the above procedure the call is placed in a queue until a virtual operator becomes free for service handling.
- This queue can be provided by the network in a network node.
- a virtual operator can also be equipped with a queue for incoming service orders. In this way, traffic peaks in which several subscribers want to use the same service at the same time or within a short time interval can be absorbed.
- the call of additional resources such as the speech handling system SPR in step (4) is an advantageous extension of the invention in the event that these resources are provided in the telecommunications network anyway. If there is no such equipment in the telecommunication network, there is in any case the possibility according to the invention to emulate it by means of suitable additional service modules DMO by means of software. If necessary, these additional service modules can also be imported into the virtual operator VOP.
- each executed service ANW has an instance of the virtual operator VOP. If a certain service should be able to handle several jobs at the same time, a corresponding number of instances can be set up in the relevant network node. The number of instances can, for example, be preset or adapted to the current volume, since virtual operators can be started or stopped at any time by making entries via the MML user interface.
- a system which, like the EWSD system mentioned above, has a central processor unit and several secondary processor units, for example one secondary processor unit each can be used to execute one instance.
- an instance can also be implemented in duplicate in such a way that two instances are assigned to the same service version and run on different secondary processors.
- One slave processor executes the active instance, while the other slave processor executes a passive instance e.g. in a standby state. In the event of an error on the part of the active instance, the passive instance can then take over the service handling from the active instance.
- the number of instances can also be dynamically regulated in the network node itself, e.g. in combination with a queue such that when the queue is filled above a certain value, e.g. two waiting jobs, a new instance is started while an instance is terminating, e.g. if for which no order comes in after a set waiting period - unless, of course, it is the only active entity.
- a certain value e.g. two waiting jobs
- each service is uniquely assigned a number, e.g. between 1 and 255.
- a manual operator is used to carry out a specific subtask.
- the execution of the service is temporarily transferred to the manual operator.
- the manual operator may receive a message that contains a query for a search for a search term; the service module waits until after the search has been completed, the manual operator enters the search result into the service.
- the manual operator can enter into a dialogue with the service user, for example, if the user has to ask for a search term with certain properties (such as a place name).
- the manual operator can advantageously also influence the further course of the service, for example by return information returned to the service module, which relates to the result of the activity of the manual operator, for example whether the result of the search by the manual operator was successful was what kind of search term or search result is etc.
- the platform of the virtual operator additionally allows the possibility of falling back to a manual operator. This means that the process of the application supported by the virtual operator is terminated and the service is transferred to a manual operator who continues the service from the status at the time of the fallback.
- the falling back can be provided, for example, at certain preprogrammed points in the service flow of the application program, for example when special situations occur, in particular an error state, such as in the event of a failure of a requested item of equipment, or when the request for an item of equipment fails.
- the ACC service can provide that if the request of the speech handling system SPR is unsuccessful, the service execution falls back to the manual operator MOP.
- the subscriber can also trigger the falling back to the manual operator himself, for example by dialing a zero on his terminal or by pressing a specific signal key.
- Another trigger for falling behind can be, for example, the called party TNB hanging up prematurely with the ACC service.
- an application service ANW is assigned to a specific group of manual operators. This is because a manual operator can only be used for certain tasks due to his training and / or equipment and / or the equipment he can use.
- the virtual operators are then advantageously placed as a separate operator group next to the groups of manual operators, and the services perceived by virtual operators are assigned to this operator group.
- the service may be terminated prematurely. This is e.g. in the event that the subscriber ends the call during the service ("hangs up"! fully and is triggered by the hang-up signal.
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephonic Communication Services (AREA)
- Exchange Systems With Centralized Control (AREA)
Abstract
Description
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19981198T DE19981198D2 (de) | 1998-06-26 | 1999-06-21 | Netzknoten mit Plattform für automatisierte Dienste |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98111917.5 | 1998-06-26 | ||
EP98111917 | 1998-06-26 |
Publications (1)
Publication Number | Publication Date |
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WO2000001134A1 true WO2000001134A1 (de) | 2000-01-06 |
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Application Number | Title | Priority Date | Filing Date |
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PCT/EP1999/004302 WO2000001134A1 (de) | 1998-06-26 | 1999-06-21 | Netzknoten mit plattform für automatisierte dienste |
Country Status (3)
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CN (1) | CN1315105A (de) |
DE (1) | DE19981198D2 (de) |
WO (1) | WO2000001134A1 (de) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996004743A1 (en) * | 1994-08-04 | 1996-02-15 | British Telecommunications Public Limited Company | Intelligent communications networks |
EP0750413A2 (de) * | 1995-06-21 | 1996-12-27 | Intellprop Limited | Fernsprechkonferenzsystem |
-
1999
- 1999-06-21 WO PCT/EP1999/004302 patent/WO2000001134A1/de active Application Filing
- 1999-06-21 CN CN 99810129 patent/CN1315105A/zh active Pending
- 1999-06-21 DE DE19981198T patent/DE19981198D2/de not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996004743A1 (en) * | 1994-08-04 | 1996-02-15 | British Telecommunications Public Limited Company | Intelligent communications networks |
EP0750413A2 (de) * | 1995-06-21 | 1996-12-27 | Intellprop Limited | Fernsprechkonferenzsystem |
Also Published As
Publication number | Publication date |
---|---|
CN1315105A (zh) | 2001-09-26 |
DE19981198D2 (de) | 2001-06-21 |
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