WO1999040731A2

WO1999040731A2 - System and method, especially for establishing telecommunications

Info

Publication number: WO1999040731A2
Application number: PCT/DE1999/000380
Authority: WO
Inventors: Rainer Fechner; Albert Peitz; Claus-Michael Wende
Original assignee: Krone Management Und Technologie Gmbh & Co. Kg
Priority date: 1998-02-09
Filing date: 1999-02-05
Publication date: 1999-08-12
Also published as: AU3325799A; WO1999040731A3; DE19980294D2

Abstract

The invention relates to a system and method for establishing telecommunications. In the inventive system, call numbers specific to each subscriber, independent of the connection site and unique to the system, are allocated to subscribers. Said system includes a first subsystem (1) comprising first switching systems (LE/Ovst 11, 1t) which are subscriber access equipment, and possibly second switching systems (2x). Said system includes a second subsystem (2) comprising at least one switching device (LSSML3) inside which subscriber identification data are stored (PR1, PR2, à; PIN1, PIN2, à). In order to obtain unlimited call number portability, the second subsystem (2) is directly connected only to first switching devices (LE/Ovst) of the first subsystem (1), which can be structured at will.

Description

System and method, in particular for the production of telecommunication connections

The invention relates to a system, in particular for the production of telecommunications connections according to the preamble of claim 1 and a method, in particular for the production of telecommunications connections. The invention also relates to a circuit arrangement which is part of the system according to the invention, and to further system components.

Telecommunication dialing networks and private branch exchanges usually connect two subscriber terminals to one another for the exchange of telecommunications messages (e.g. voice, data, images). In connection control, numbering systems are usually used both in analog and in digital, computer-controlled telecommunication dialing networks in which the address of the destination and the connecting line are the subject of the call number itself.

With this conventional structure of known telecommunication dialing networks and private branch exchanges, the degree of utilization of the number of telephone numbers is very low. It is usually below 10%. Attempts to establish a telecommunications connection do not always lead to the desired transmission of messages if the called subscriber terminal is not operated or the desired subscriber is not present at the location of the subscriber terminal. Another disadvantage of this structure is that new telephone numbers have to be assigned when the telephone connection location (residence or office) is relocated. On the one hand, this requires that the operating company, which operates the network of the original place of residence or office, and possibly the operating company, which operates the network of the new place of residence or office, have to change network configuration data.

From DE 39 21 637 a system with a circuit arrangement for switching systems is known, in which mobile subscriber stations can either with one of several switching centers via subscriber lines or via subscriber-specific wireless connections can be connected in a fixed position with respect to the relevant switching center. In this context, it is provided that information is not stored in all local exchanges indicating which home location register is the "responsible" for each of the existing subscriber stations. Memory is provided for each local exchange, in which only information is stored which indicates which subscriber stations are currently connected to the relevant local exchange. Furthermore, memories are provided in intermediate exchanges, in each of which information is stored which indicates which subscriber stations are currently connected to which only the hierarchically subordinate local exchange.

The known circuit arrangement makes it possible to reduce the outlay on switching technology for the production of telecommunications connections. The reduction is essentially achieved in that when establishing telecommunication connections, search messages for a desired B subscriber are not to be transmitted through the entire switching network, but rather that search messages are only transmitted from the originating point to the end switching point and then only if necessary via hierarchically directly superior intermediate switching points be performed. The system is designed in such a way that conventional wired and mobile subscriber stations are permanently assigned to a terminal exchange. Portability of the numbers in the sense of a temporary activation of numbers at any system access points is also not implemented.

From DE 94 04 477 U l a circuit arrangement for telecommunication switching systems, in particular telephone switching systems, is known in a single or multi-stage network. First switching systems of a first, lower hierarchical level are provided in the network and, if appropriate, at least second switching systems of a second, higher hierarchical level, subscriber lines being connectable to the first switching systems. In this multi-level network, the switching systems are of a higher level Hierarchy level each connected to at least two switching systems of the hierarchy level arranged below. Each switching system in the network is assigned a memory in which information about the connection location of all participants in the network can be stored.

In the case of networks for a relatively large catchment area, which extends, for example, over several countries or even continents, all of the above-mentioned memories, each of which is assigned to a switching system, would have to absorb considerable amounts of information. The corresponding procedures for updating and operating as intended are complex.

From WO 97/35392 a circuit arrangement for a telecommunication switching system in a system is known in which an administration of all system subscribers which are currently connected there is provided in each local exchange E, E2, E3, E4. In a memory S l, which is assigned to a local exchange (e.g. E l), first administrative data are stored for all system participants and secondly, second administrative data are also stored for all participants actually present in the catchment area of this local exchange. Two separate memory areas, a so-called presence bit bar and a so-called information register (location register LR), are provided in each memory S 1. Here, e.g. in a network with 100,000,000 subscribers, 12.5 megabytes of storage space is required for the presence bit bar in order to manage all attendance data for the total of this subscriber set.

All other switching systems Z31 -39; Z21 -28 of the system, which are hierarchically superordinate to the local exchange E l, E2, E3, E4, each has its own memory S3 1 -39; Assigned S21 -28, in which information about the connection location of accessible system participants is stored. The system presupposes a hierarchical structure of the switching systems, in which the local switching systems are the switching systems Z31 -39 and the switching systems Z21 -28 are superordinate. The system does not allow meshed structures, in which local switching systems are directly connected to the switching systems, for example the top hierarchical level, and structures in which local switching systems are arranged in a ring-shaped manner with respect to one another, since the procedures for changing system configuration data in the system are always via switching systems, at least the lowest and of the immediately higher hierarchical level.

Another disadvantage of the known solution is that a telecommunication connection to be set up must necessarily be carried out in sections over transmission links which are predefined for the respective B subscriber by corresponding entries in memories.

In a network with partial or full meshing, this type of connection cannot be carried out or can only be carried out with relatively great restrictions. Furthermore, this type of connection establishment presupposes that every exchange and without exception in all hierarchical levels has its own individual additional device for a route search and for a search for subscriber-identifying data (route / subscriber search). This is relatively expensive, especially if the capacity and thus the degree of utilization of the additional devices for searching for a route / subscriber is low.

Another disadvantage is that telecommunications connections are established in sections in the network, which requires connection data in the individual exchanges of the different hierarchy levels to be changed continuously. The invention is based on the technical problem of specifying a system, a method and system components of the type mentioned at the outset, which provide extended use options for call number portability.

According to the invention, this problem is solved by a system, a method and system components, which are defined in the claims.

In the system according to the invention, subscribers are each assigned a subscriber-specific, connection-independent, system-wide unique number. The system is divided into two subsystems: a first subsystem comprises first telecommunication systems, which are subscriber access telecommunication systems, and possibly second telecommunication systems, while a second subsystem does not include telecommunication systems, but has circuit arrangements that store, manage and process subscriber-identifying data. The second subsystem is only directly connected to the first telecommunications systems of the first subsystem.

The invention is characterized by a number of advantages.

The system realizes the feature of portability portability without restrictions in terms of location (location portability); with regard to services that can be assigned to specifiable subscribers (service portability) and with regard to switching to different operating companies (service provider portability). Furthermore, the number portability is retained even if there are only temporary changes of location, i.e. the personal number can also be temporarily assigned to any physical connection. The invention enables call number portability in telephony systems regardless of their hierarchical structure. Rather, the systems can be structured as desired and meshed, for example.

The number of required circuit arrangements (LSSM) in the second subsystem is also significantly smaller (eg by a factor of 20) than the sum of Local exchanges and other exchanges in the first subsystem. In hierarchically structured telecommunications systems, the number of circuit arrangements required according to the invention is also independent of the number of switching systems that are superior to the local switching systems.

Another advantage which is extremely important in practice is that the switching outlay for the production of telecommunication connections in the system according to the invention is considerably reduced compared to a system according to WO 97/35392. While in the system according to WO 97/35392 the path is searched successively in sections and a section telecommunication connection is established, namely different hierarchy levels are set up from exchange to exchange, in the system according to the invention, the originating exchange, after these are responsible for the Establishing the connection necessary information from a circuit arrangement according to the invention in subsystem 2, produced continuously to the destination switching center.

In the system according to the invention, there is only a search for subscriber-identifying data in subsystem 2, but no search for a path during the actual establishment of a message connection, as is provided in the system according to WO 97/35392.

Since the system is divided into two clearly defined subsystems, the design of the second subsystem is based solely on the quantitative and dynamic conditions in the second subsystem itself.

In a preferred embodiment, a plurality of first circuit arrangements and second circuit arrangements in the second subsystem are arranged in at least two levels, with the first being stored

Circuit arrangements of subscriber-identifying data and in memories of the second circuit arrangements are stored, each of which designates a section of a route of a search message for searching the subscriber-identifying data. This second subsystem designed in this way can be constructed using simply structured circuit arrangements LSSM (Link Subscriber Search Module), which can all have the same hardware structure. With regard to their functionality and the software structure, only two types of circuit arrangements are provided, on the one hand circuit arrangements LSSML3 of a lower subsystem hierarchy level and on the other hand circuit arrangements LSSML2, LSSMLl higher subsystem hierarchy levels, the latter two circuit arrangements LSSML2 and LSSML l being constructed identically. These circuit arrangements can be designed with a comparatively small storage capacity, namely, for example, with only 4 bits per system subscriber phone number to be managed, these 4 bits being used for addressing other circuit arrangements in the second subsystem.

The system also makes it possible for all subscribers in a country, which can comprise a plurality of operating networks, to provide the features “accessible everywhere without detours” and the number portability within the respective operating networks and beyond their borders, regardless of existing or new numbering systems.

The system or the method can be used in connection with existing telecommunications dialing networks and also in private branch exchanges that are connected to these telecommunications dialing networks.

The circuit arrangement LSSML3 can preferably be connected as an additional device via standard signaling channels to existing exchanges in the subscriber access level (local exchanges) or to nominal exchange systems. When setting up new networks, the routines customary today for dialing digit evaluation and for the search for connection paths and subscribers as well as the routing function can be achieved by supplementing the telecommunication switching system programs in accordance with the process structure according to the invention, so that separate circuit arrangements (LSSM.L3 ) can be dispensed with as an additional device.

Furthermore, the invention enables the function implemented by the circuit arrangement according to the invention to be integrated into network nodes (Signaling Transfer Points STP) of CCS7 networks.

The system is based, among other things, on the basic principle that any number of subscribers can be reached under their personal number via any network access line (between subscriber terminal and local exchange), i.e. that the subscriber access network becomes call number neutral (no fixed assignment to physical connection). The connecting lines used today, which are included in the system according to the invention, are thus advantageously supplied with a higher degree of utilization.

In the system according to the invention, the "lock on" messages (IT1, IT2) and subscriber-identifying data are managed locally for a larger number of local exchange systems by means of a single circuit arrangement LSSML3; the system thus has a new type of database structure, which enables any exchange of the subscriber-identifying data.

In the system according to the invention, larger private branch exchanges (for example over 100 private branch exchanges) and corporate networks in the network hierarchy preferably form a sublevel to the local exchanges (Local Exchanges LE) of the public network. Network nodes of a corporate network and large private branch exchanges, like the public switched telephone network, can be equipped with circuit arrangements LSSML3 according to the invention. The business phone numbers are transparently in the general system Numbering scheme included. This ensures that a business subscriber can be reached not just within the catchment area of his private branch exchange, but also outside the catchment area of the private branch exchange, like any other subscriber anywhere and from anywhere under his business phone number. The same applies to all participants in the public network if they are in the access area of a corporate network or a large private branch exchange. The LSSML3 to which the private branch exchange is assigned also manages the address volume of the entire corporate network. It is also possible to assign an additional second subsystem to the corporate network. As a result, only the in-house subsystem or search network is charged for internal traffic. In the case of external communication, however, the additional subsystem behaves like an additional subordinate hierarchy level of the public second subsystem. In addition, use cases are also conceivable in which the second subsystem is only assigned to one corporate network. In this case the corporate network forms the first subsystem and for internal traffic the system behaves as previously described. For calls from outside the corporate network, these are only directed to the PABX (private automatic branch exchange) that manages the home port. From there, after searching in the subsystem, it is forwarded to the current location, for example by forwarding calls in the public network.

Due to the relatively small number of subscribers in a corporate network compared to a TC network, all subscriber data can be stored in a single LSSM module. According to the architecture and philosophy for the telecommunications network LSSM this module would more PABX ^'s be assigned. However, if the PABX were spatially distributed at different locations, this would mean that the search process would always have to be connected to one LSSM module over long distances. Therefore, preference is given to corporate networks abandoned this strict architecture and assigned a separate LSSM module to each PABX, each of which contains the complete data set of the corporate network. In this case, the LSSM modules are not only identical in terms of hardware but also completely identical in terms of data, so that the subscriber search is carried out exclusively in the area of your own PABX. With this architecture, however, it must now be ensured that when an entry is changed in an LSSM module, this is adopted by the other LSSM modules. A corresponding up-dating is required for this. For this purpose, the LSSM modules are preferably connected to one another via an intra-net. If an entry is then changed in an LSSM module, this LSSM module generates a change request to all other LSSM modules, which is forwarded to the LSSM modules via the Intra-Net.

Another advantage of the system according to the invention is that conventional mobile communication networks can also be integrated. For this purpose, the system according to the invention is designed in such a way that mobile switching centers are each connected to a circuit arrangement LSSML3 according to the invention. Mobile numbers (network code and terminal number) are stored for mobile subscribers. Thus, a mobile subscriber in the system according to the invention can either store one or more of his numbers in the public telephone network under his mobile phone number, so that a call for his private number or number in the fixed network is automatically forwarded to his mobile phone.

In principle, therefore, a mobile phone connection is treated no differently than any other landline connection, so that any telephone numbers can be registered under the mobile phone number using appropriate lock-on procedures. Often, however, only the cell phone subscriber would like to forward special own numbers to his cell phone. This can be, for example, his own personal number PR, his private number, a business number and / or another mobile number. For simplified automatic Forwarding these constantly recurring numbers can therefore be made a fixed assignment between the mobile phone number and these additional numbers, which can then be activated optionally. In principle, this assignment can be carried out at two different locations, namely on the mobile radio telephone or in the home location register HLR of the mobile radio network.

In the embodiment with assignment on the mobile radio telephone, the additional call numbers and at least one personal identity number PIN are stored in a memory of the mobile radio telephone. A separate PIN can be assigned to the various additional numbers, or only a single PIN can be required for all additional numbers. When the mobile phone is switched on, selected additional phone numbers can then be transmitted to the Mobile Switching Center MSC in addition to the actual mobile phone number. For this purpose, certain combinations of numbers can be assigned to individual function keys of the mobile radio telephone, the PIN transmitted with it being used to prove the authorization of the respective call diversion.

The additional call numbers and the PIN, like the actual mobile phone number, are preferably stored in the subscriber identity module SIM of the mobile radio telephone, which is designed, for example, as an E-PROM, EE-PROM or as a chip card. Among other things, the mobile phone number is stored in the SIM and can be called up by a Mobile Switching Center MSC when the terminal is activated and during switching processes. The information in the SIM also enables a mobile subscriber to be localized at any time and the necessary entries in the home location register HLR and visitor location register VLR of the mobile network.

If one or more additional phone numbers with the PIN are now transmitted to the MSC in addition to the actual mobile phone number, the MSC generates a lock like a normal local exchange (Local Exchanges LE) on record for each additional phone number that contains at least the respective phone number, the mobile phone number and the PIN. The phone number is used to search for the entry in the subscriber search network and the PIN is used to check the authorization of the diversion. If the result is positive, the mobile phone number is entered in the data field for the current access system, so that all calls for the phone number are switched through to the mobile radio telephone via the subscriber search network. The advantage of such an implementation is that no changes to subscriber administration in the mobile radio network are necessary. This new functionality of the mobile radio telephone can be achieved by simply exchanging the chip card or reprogramming the E or EE PROMs, the specific design of the search network not being important.

In a further embodiment, the entries in the home location register HLR which are specific to mobile radio subscribers are expanded by the additional telephone numbers including the PIN, which must be carried out by the network operator. When the mobile phone is switched on, the mobile phone number is then only sent to the MSC as before. Through this activation, the mobile radio network must then generate the lock-on data records for the additional call numbers and search for and overwrite the corresponding entries via the search network. If the subscriber then does not want to accept certain calls, they can be redirected back to the subscriber terminal with the assigned call number, for example using a redirection function.

Operator networks of different operators can also be integrated into the system according to the invention, for which originally individual operator number plans and network access codes are provided. This integration is made possible by the fact that subscriber-identifying data (lock on, personal telephone number) is exchanged at the transitions of different operator network transitions. A subscriber can take his number with him at any change of location and activate it selectively without - or other participants who establish a telecommunications connection to him - would have to choose a separate network code.

The system according to the invention is used in particular for the production of telecommunications connections, in particular telephone connections; these telecommunications connections can also be used, for example, to transmit data in a system with data processing devices from financial institutions in order to carry out and manage account movements.

Preferred embodiments of the invention will now be described with reference to the drawings. It shows

1 shows a basic structure of a system with a first and second subsystem, FIG. 2 shows a first exemplary embodiment of the system according to FIG. 1, FIG. 3 shows a second subsystem of the system according to the invention; 4 shows a second exemplary embodiment of the system with a plurality of multistage networks N1, N2 and N3; 5 shows a third exemplary embodiment of the system with a plurality of multistage networks which cover a continental catchment area; 6 shows a second subsystem of a fourth embodiment of the system with a connection to International Gateway Exchange and

Interconnect Exchange facilities; 7 shows an exemplary embodiment of the circuitry or functional

Structure of a circuit arrangement LSSML3 in a second subsystem; 8 shows a block diagram which represents the functional structure of circuit arrangements LSSL3, LSSML2, LSSMLl according to the invention;

9 data fields of subscriber-identifying data in the circuit arrangement

LSSML3 or a central device AC and Fig.10 a system with an additional first and second subsystem.

1 shows on the left half a telecommunications network TK, which represents the first subsystem 1 of the system, in which any routing algorithms can be performed and which can have any architecture. Local exchanges LE / OVSt (1 1 - lt) with subscriber stations TST1 -TSTn and a further switching center 2 x, which is hierarchically superordinate to the local switching centers, are shown merely by way of example. On the right half, a second subsystem 2 with circuit arrangements LSSM, which are arranged in three levels L1, L2, L3, is shown with a higher-level central device (Authentication Center) AC. This second subsystem 2 represents a completely independent search network, which does not contain any alarm systems and which is only connected to the first subsystem 1 at the lowest level via a signaling network.

The physical connection lines are not numbered in the system, but instead the subscribers are assigned a subscriber-specific, connection system-independent, system-wide unique number. A subscriber TLN1 is assigned the number PR1 and a subscriber TLN2 the number PR2. On a connecting line, several, in principle any number of subscribers can be reached with their own phone numbers (e.g. a household with 4 people and occasionally several visitors) and set up telecommunication connections from this connecting line, the charges incurred thereby being individually assignable to them by means of a device BD in FIG. 2 are.

The subscribers are preferably also assigned a secret number (Personal Identity Number) PIN 1, PIN2, .., each PIN number being assigned only once throughout the system. However, it is also possible that only a predeterminable number (for example 1,000,000) of PIN numbers is allocated, which is less than the number of subscribers present throughout the system, in which case the abuse of the secret numbers can be prevented by means of additional routines. The switching centers LE / OVSt are connected to the lowest level L3 of the circuit arrangements LSSML3 via logical connections and a signaling network, which is preferably designed as a CCS7 network. In the exemplary embodiment shown in FIG. 1, the local exchanges (subscriber access exchanges) are linked to the circuit arrangements LSSML3 of level L3 via the single transition between the two subsystems 1, 2, a circuit arrangement LSSML3 being able to serve several local exchanges LE / OVSt, for example a regional network access area. This single transition is formed by interfaces IF 1 of the first subsystem and by interfaces IF2 of the second subsystem 2. Depending on the degree of expansion of the overall system, one or more interfaces are provided, each in level L3 of subsystem 2.

In a circuit arrangement LSSML3, subscriber-identifying data is stored and managed for participants to whom this circuit arrangement is permanently assigned when it is started up for the first time (at a time when the participant in question is located in Munich, for example). It can be provided that this circuit arrangement is also available to the subscriber in question during a temporary change of location (roaming) e.g. remains assigned from Munich to New York. In relation to this circuit arrangement, this subscriber is “home subscriber”. In the example mentioned, for example, a subscriber who is traveling from Munich to New York and who is in New York can be reached under his system-wide telephone number (PRI) the subscriber-identifying data is stored in the “Munich home circuit arrangement LSSML3”. Provision can furthermore be made for this circuit arrangement to store and manage subscriber-identifying data for participants who are only temporarily in the local area of this circuit arrangement. The entry or search of the subscriber-relevant data within the LSSML3 is preferably carried out using a hash algorithm.

The circuit arrangements LSSML2 (level L2) and LSSML l (level L l) serve to link a plurality of circuit arrangements LSSML3 for the search for subscriber-identifying data, with one module LSSML2 each For example, up to 15 circuit arrangements or modules of the lower level L3 can also be connected via logical connections of a CCS7 network. The function of the authentication center (AC), which is arranged centrally in a second subsystem 2 or in a network (Nx for x = 1,... 15,: NUK, etc. in FIGS. 4 to 6) still described.

A memory LSSML3.S (FIG. 4) is assigned to the first circuit arrangement LSSML3, in which subscriber-identifying data (PR1, PR2, ..; PIN I, PIN2, ..) including connection location information (INF. PORT) are stored. This information denotes connection locations via which the subscribers can be reached under their phone number for incoming telecommunications connections.

The second subsystem can have a plurality of first circuit arrangements LSSML3 and second circuit arrangements LSSML2; LSSML l in at least two levels L3, L2; Ll have. While in memory LSSML3.S of the first circuit arrangements LSSML3 in level L3, subscriber-identifying data are stored, in memory LSSML2.S; LSSMLl. S of the second circuit arrangements LSSML2, LSSMLl in level L2 or L1 information (INF. POINT) are stored, each of which denotes a section of a route of a search message for searching the subscriber-identifying data.

The system can also be designed such that the first subscriber-identifying data, which identify a predeterminable subscriber TLN1, and are stored in a first memory (LSSML3.N 1.1.S, Fig. 4) of a first circuit arrangement (LSSML3.N1.1), Can be changed by means of a first message IT1, which denotes a temporary change of location and thus a new location for the subscriber TLN1 and which optionally contains second subscriber-identifying data (for example PIN 1) which identify the same subscriber. The first and second subscriber-identifying data can be identical; in general, the second subscriber-identifying data serve to find the first subscriber-identifying data, which are stored in the subsystem 2, there. The first message ITl that still to be described, can be entered into any subscriber station of the first subsystem 1, in any network N1, N2, N3, ... (FIGS. 4 to 6).

After their change, which was triggered by a message IT1 in the event of a temporary change of location, the subscriber-identifying data preferably remain in the first memory (LSSML3.N 1.1.S) of the home circuit arrangement LSSML3.N 1.1; However, it can also be provided that the changed subscriber-identifying data are stored in a second memory (for example LSSML3.N3.200.S, FIG. 4) which is assigned to a first circuit arrangement (LSSML3.N3.200, FIG. 4) . assigned to the new location.

The message IT1 in the event of a temporary change of location (roaming) is in each case transmitted by a subscriber TLN1, e.g. entered by means of a telephone chip card from any network connection and consists in particular of: an indicator (lock on); Phone number (PR); Call sequence number;

Address of the original circuit arrangement LSSML3, to which the message IT1 is supplied.

Secret number (PIN) The first circuit arrangements LSSML3 of level 3 are assigned to subscriber access switching systems (LE / OVSt) of different geographical catchment areas and / or different operator networks (N 1, N2, N3). According to a further embodiment of the invention, these circuit arrangements LSSML3 of level L3 are assigned control units (LSSML3.CPU, FIG. 4) with control programs, which are configured as follows: triggered by a second message IT2, which denotes a constant change of location of a subscriber TLN 1 and can be entered into any subscriber station of the first subsystem 1 or from a central device (AC.N 1) of the second subsystem 2. the first participant-identifying data from a first circuit arrangement ("original home circuit arrangement" LSSML3.N3.200) of a first geographical catchment area and / or a first operating network to a further first circuit arrangement ("new home circuit arrangement" LSSML3.N1.1) of another geographical catchment area and / or another Operator network. The subscriber-identifying data in the first circuit arrangement (LSSML3.N3.200) of the first geographical catchment area and / or the first operator network are deleted.

Message IT2 is usually initiated by an operator of the network operator. In particular, it includes the following data fields: an indicator for setting up or changing a subscriber entry;

Phone number (PR);

Service profile of the subscriber (performance features assigned to him); - ringing pattern (ringing pattem);

PIN (PIN).

The message IT2 is replaced by adding e.g. the original address of the circuit arrangement LSSML3 is supplemented by a search message in the subsystem 2, which may lead to new setup, a shift in position and / or a permanent change in a subscriber entry.

In a further embodiment of the system, a device BD (FIG. 2) for determining the telecommunications fees to be paid is provided in the system (1, 2), either in the subsystem 2, assigned to the central device AC there or in the subsystem 1 or with components in two subsystems. The device BD is assigned a control unit with a control program designed in such a way that triggered by a third message IT3 from a calling subscriber TLN 1, which denotes an outgoing telecommunication connection and which is optionally provided with an identity code of the calling subscriber TLN 1, fee information and this assigns the calling subscriber TLN 1. The message IT3 is thus generated by a subscriber or entered into the system, which is registered in the subsystem 2 with its subscriber-identifying data. It allows him to make calls on his own account from any network access. To do this, he must enter his own phone number and the PIN code before dialing the B subscriber: The message IT3 consists in particular of:

Call indicator for fee allocation;

Number (PR) of the calling subscriber; - PIN PIN;

Address of the original circuit arrangement LSSML3;

Call sequence number.

In a further embodiment of the system, a control program of a control unit LSSML3.CPU is a first circuit arrangement of level L3 in the

It is designed such that when a calling subscriber TLN1 is connected to a called subscriber TLN2, a fourth message IT4 from the calling subscriber TLN1 triggers an outgoing call

Designated telecommunication connection and which contains the personal number PR2 of the called subscriber TLN2, the connection location information INF assigned to the called subscriber TLN2. PORT.2 is determined in the second subsystem 2 and is transmitted to the first subsystem 1 in order to establish the female communication link. The connection establishment (routing) in the first subsystem takes place after the procedures have been carried out in the second subsystem 2 and is in this respect independent of this.

As also shown in FIG. 6, instead of the connection to the first subsystem 1 or in addition to this connection to the first subsystem 1, the second subsystem 2 can be connected via an interface to a further telecommunication system IGE / ICE, in particular an International Gateway Exchange Establishment IGE or an Interconnect Exchange establishment ICE between Have networks N 1, N 2 from different operators, which thus becomes part of the first subsystem 1.

Furthermore, it can be provided that the system has at least two operating ratios (N 1, N 2; FIG. 4) and that in the memory LSSML3.N1.1.S of a first circuit arrangement LSSML3.N 1.1 in the second subsystem of the one operator network N 1 identifying participants Data of the subscribers of the other operator network N2 are stored.

In particular, the invention also relates to a circuit arrangement (e.g. LSSML3.N1.1, Fig. 4) for searching subscriber-identifying data, in particular in a system described above. The circuit arrangement is assigned a control unit LSSML3.N1.1.CPU with a control program designed in such a way that a search message is formed to search for subscriber-identifying data, which consists of at least one search term (for example personal telephone number PR), on the basis of which the search is carried out, and consists of the address of the circuit arrangement forming the search message (LSSML3.N 1.1).

Furthermore, a first check in the memory (LSSML3.N 1.1.S) of the first circuit arrangement forming the search message (LSSML3.N 1.1) is carried out for the existence of the subscriber-identifying data. If the result of the check is positive, the search process is ended, while if the result of the check is negative, the search message is conducted at least via a second circuit arrangement LSSML2.N 1.1 of level L2, which hierarchically superordinates the first circuit arrangement LSSML3.N 1.1 forming the search message is.

The information identifying the further search path (INF. POINT) is queried in the memory LSSML2.N1.1.S of the second circuit arrangement LSSML2.N 1.1, and the further search path is continued according to this information, either hierarchically ascending to another Circuit arrangement LSSML l .N l. l in level L1 or across operating networks, in particular to a further second circuit arrangement LSSML2.N3.15 of level L2 or in a hierarchically descending manner to a further first circuit arrangement LSSML3.N 1.15 (level L3), the memory (LSSML3.N L-15.S) contains the searched subscriber-identifying data, so that a query for the existence of the subscriber-identifying data leads to a positive result.

The subscriber-identifying data, for which a query has led to a positive result, are checked and / or changed depending on the type of a message that triggered the formation of the search message, and / or changed, and / or in a memory of another transmitted and / or deleted the first circuit arrangement.

In a circuit arrangement (LSSML2.N1., LSSMLl .N l. L) of level L2 or L l, the information designating a further search path (INF: POINT) is corresponding to a result of the check, and / or the change, and / or transmission and / or deletion changed.

A central device (AC.N 1) is arranged in each subsystem 2, which is superordinate to a circuit arrangement LSSML 1 of level L1. The central facility manages the entire number range both for all system subscribers and, if appropriate, for unassigned phone numbers of subscribers from other systems. For this purpose, the central device AC (AC.N l in FIG. 4) has a memory AC.Nl. S, in which for each subscriber TLN1, TLN2, ... of the respective operator network (here: N 1) subscriber-identifying data can be called up on the basis of assigned call numbers PR1, PR2, ... The central device also serves as a backup of the subscriber-identifying data in the individual circuit arrangements LSSML3, for the management of unoccupied numbers in the first subsystem and numbers with special features such as a block or announcement. Access to the Central facility AC through subsystem 2 (via LSSMLl) can be used when searching for unoccupied numbers and numbers with special features and with system errors in subsystem 2. System errors, for example in the event of data loss in one of the LSSM circuit arrangements, are signaled to the central device AC, which retrieves the corresponding data from its memory and rewrites it in the circuit arrangements concerned. In addition to the subscriber-identifying data, the following messages and data are also important in the system: a) the subscriber database in the central facility AC; b) the IT2 message when a subscriber entry is set up for the first time or when a subscriber constantly changes location; c) the message IT1 for changing subscriber-identifying data in the event of a temporary change of location (roaming) of a subscriber; d) the message IT4 in the event of a connection being set up by a calling subscriber; e) the message IT3, which is entered by a subscriber in the case of an outgoing connection from any network connection, in order to arrange a charge allocation to his own telephone number; and f) confirmations on inquiries or the aforementioned messages and search messages triggered by these in the subsystem.

2 illustrates this structure of the system described above, in which the switching systems LE (Local Exchanges) with subscriber stations S1 (Subscriber), NE (Nodal Exchanges), DE (District Exchanges) and with an International Gateway Exchange facility IGE with a staff Number Interface PR1 form a first subsystem 1. The circuit arrangements LSSML3 in level L3, circuit arrangements LSSML2 in level L2 and circuit arrangements LSSML l in level L l, a central device AC and possibly so-called CCS7 signaling transfer points STP form the subsystem 2. The central device AC is a device BD for determining of fee information and data entry facilities associated with POS (Points of Halls). 3 shows a system according to the invention with a subsystem 2 above the dash-dot line and with a subsystem 1 below the dash-dot line. The general implementation of the signaling network (subsystem 2) is shown. The total number of subscribers and the subscriber access switching centers LE / OVSt and the number of calls / hour that are to be supported by subsystem 2 are decisive for its configuration. The subsystem 2 shown in FIG. 3 supports, for example, a country or continental network (subsystem 1) with approximately 450 million subscribers.

The logical interface to subsystem 1 is provided in the lowest level L3. A circuit arrangement LSSML3 can be connected to a plurality of subscriber access switching centers (LE / OVSt), each of a network operator T, V, O, A, D, D ₂ , E, which as a rule belong to a region of a country. Depending on the total capacity of a national network, several, in the example shown, up to 225 LSSML3 circuit arrangements can be connected, so that the subscriber search network (subsystem 2) can manage, for example, 1 billion call numbers. Accordingly, 1 billion entries are provided in a memory S of a circuit arrangement LSSML1 and LSSML2; there is therefore an entry for each system-wide assigned number. Furthermore, an assignment to (for example 16) outputs of the relevant circuit arrangement LSSML 1, LSSML2 is stored with one nibble (INF. PORT) per call number. This marks a section of the route of a search message to a circuit arrangement LSSML3 in which the subscriber-identifying data are stored. An output 1 to 15 leads to a circuit arrangement of a lower hierarchical level, while an output 0 leads to a circuit arrangement of a higher hierarchical level.

Fig. 4 shows a telecommunications switching system. which comprises three interconnected carrier networks N 1, N2 and N3. In every operator network N l, N2 and N3 a plurality of local exchanges (Local Exchanges) LE are arranged, of which only a part is shown, namely in the operator network N l the local exchanges LE.N l. l, LE.N1.15; LE.N 1,180, LE.N 1,200; LE.N 1.3000, LE.N 1.3015 and LE.N 1.3985, LE.N1.4000, in the operator network N2 the local exchanges LE.N2.nl, LE.N2.nl5; LE.N2.xl, LE.N2.xl 6, and in the operator network N3 the local exchanges LE.N3.nl, LE.N3.nl 5; LE.N3.xl, and LE.N3.xl 6. The system consists of a first subsystem 1 below and a second subsystem 2 above the horizontal dashed line.

Subscriber stations, for example the subscriber station TST.N1.1, are connected to the local exchange LE in subsystem 1 to the local exchange LE.Nl. l, connected. The subscriber stations are connected via a subscriber line to the respectively assigned communication system (LE.Nl.l) or can be connected to one another via a radio link.

Circuit arrangements LSSML3 are arranged in the subsystem 2, for example the circuit arrangements LSSML3.N1.1, LSSML3.N 1.13, LSSML3.N1.185, LSSML3.N 1,200 in the operator network N1 and the circuit arrangements LSSML3.N2.1, LSSML3 in the operator network N2 .N2.200, and in the operator network N3 the circuit arrangements LSSML3.N3.1, LSSML3.N3.200. In the abovementioned reference symbols, "L3" stands for level (level) 3, which is the subscriber access level L3, levels L2 and Ll and a further level for central devices AC being provided in the configuration shown in FIG. In addition, sub-levels to local exchanges, e.g. are formed by large private branch exchanges and corporate networks, which will be explained in more detail with reference to FIG. 10.

A predeterminable number of, for example, 16 local exchanges LE is assigned to a circuit arrangement LSSML3. The circuit arrangement LSSML3.N 1. 1 are 15 local exchanges LE.N 1. 1 - 15 as well assigned to a private branch exchange NST1. Extensions are connected to the private branch exchange, of which the extension NT1 1 is only shown as an example. The extensions are managed like subscriber stations TST.N 1.1. A closed number range is assigned to you, which is part of the total number range of the overall system. The subscriber stations can be conventional, wired subscriber stations or radio subscriber stations.

Furthermore, 2 switching modules LSSML2 are arranged in the subsystem, for example in the operating network Nl the switching modules LSSML2.N1.1, LSSML2.N1.15, in the operating network N2 the switching modules LSSML2.N2.1, LSSML2.N2.15 and in the operating network N3 Switching modules LSSML2.N3.1, LSSML2.N3.15. For example, the circuit arrangements LSSM.L3.N 1.1 -15 are assigned to the switching module LSSML2.N1.1 and the circuit arrangements LSSM.L3.N 1.185-200 are assigned to the switching module LSSML2.N1.15. The LSSML2 switching modules are thus hierarchically superior to the LSSML3 circuit arrangements. Such a hierarchical assignment of the switching modules LSSML2 and the circuit arrangements LSSML3 is also provided in the networks N2 and N3.

The switching modules LSSML2 and the associated circuit arrangements LSSML3 can be permanently connected to one another via a connection medium such as copper or optical waveguides. A fixed connection is preferably used if, for example, the switching module LSSML2.N1.1 and the circuit arrangement LSSML3.N1.1 are arranged at the same location. However, these are preferably spatially separated and via a signaling network, in particular via a CCS7 network. connectable with each other if necessary.

In the system shown in FIG. 4, the switching modules of different networks (LSSM2.N 1.1, LSSML2.N2.1, LSSML2.N3.1: LSSM2.N 1.15, LSSML2.N2.15, LSSML2.N3.15) can be connected to one another via cross lines, in particular via a CCS7 network.

Also arranged in level L1 switching modules LSSML l, for example in the operator network Nl the switching module LSSMLl .Nl. l, in the operator network N2 the switching module LSSMLl. N2.1 and in the operator network N3 the switching module LSSML l. N3.1. In the illustrated embodiment, the switching modules LSSM.L2.N1.1 -15 are the switching module LSSMLl .Nl. l assigned. The LSSML 1 switching modules are thus hierarchically superior to the LSSML2 switching modules.

The connection between the switching modules LSSML 1 and the associated switching modules LSSML2 can also be via a fixed connection medium or, if necessary, in particular via a CCS7 network. respectively. The connection as required is preferably used when the LSSML 1 and the LSSML2 are arranged spatially separated from one another.

Each operator network N1, N2, N3 each has a central device AC.Nl, AC.N2 or AC.N3, which is permanently connected to the associated switching module LSSMLl or can be optionally connected.

At least one local exchange and one memory LSSML3.N 1.1.S are assigned to the circuit arrangements of level L3 (for example LSSML3.N1.1). The subscriber-specific phone numbers PR1, PR2, ... and other subscriber-identifying data, preferably the home subscriber, ie the subscriber TLN 1, TLN2, ... are stored in the memory, to whom the circuit arrangement LSSML2 from the initial start-up to a "constant change of location" Information INF 1 .PORT.TST.N 1.1, INF.PORT.TST.N1.2 is also stored in the memory, which physical connections of subscriber stations TST.N 1.1, TST.N 1.2, ... the telecommunication switching system LE.N.1.1 which are assigned to the above-mentioned subscribers TLN 1, TLN2, ... In a preferred embodiment are in the above-mentioned memory LSSML3.N 1.1.S also the secret numbers PIN 1, PIN2, ... of these subscribers TLN 1, TLN2, ... and information INF.SERV1.1, INF.SERV1.2,. stored, denote the service features SERV1.1., SERV1.2, .. which are assigned to the subscriber TLN 1, for example.

The circuit arrangement LSSML3.N 1.1 has a control unit LSSM3.- N 1.1. CPU to which a control program defining the method according to the invention is assigned.

The searches for determining subscriber-identifying data are basically initiated by a subscriber access switching center using the messages already described, either when a telecommunications connection is established by any A subscriber at any subscriber access switching center to any B subscriber at any other switching center or at a so-called "Lock on" of a subscriber from a network access point that was previously foreign to him (roaming subscriber).

When a call is made to a subscriber number neutral network, the number that corresponds to the current connection position of the desired subscriber must be determined. The subscriber search network (subsystem 2) determines the subscriber-identifying data, in particular a data field in which the call number of the subscriber's current network connection is stored. Accordingly, search messages are formed in subsystem 2, which can take different paths between a so-called origin circuit arrangement LSSML3 and a so-called destination circuit arrangement LSSML3, for example depending on the position of the calling subscriber to the called subscriber or the originating circuit arrangement LSSML3 to the destination circuit arrangement LSSML3 either no data at all (the data of the subscriber searched are also stored in of the original circuit arrangement LSSML3 managed) or one or more levels are run through according to the method already mentioned, which will be described in more detail below.

As part of a search message, the address of the original circuit arrangement LSSML3 to the destination circuit arrangement LSSML3 is transmitted in addition to the dialed number of the B subscriber, so that the destination circuit arrangement LSSML3 contains the subscriber-identifying data, in particular the call number of the network access to be dialed (roaming port ) can optionally be transferred to the original circuit arrangement LSSML3.

All searches, i.e. also those for a “lock on” registration procedure basically run according to the described method.

The modules LSSM of the subscriber search network according to the invention can e.g. in an existing, but also independent signaling network (e.g. CCS7 network). As the figures show, a common physical connection for each module on the CCS7 network is sufficient, since the logical links are controlled via addressing parameters using virtual connections within the CCS7 network.

4 shows a subscriber search network (subsystem 2) which contains the subscriber-identifying data of all subscribers e.g. of a country is managed in a common network, regardless of which network operator you have your home connection with. However, there are also application examples in which each network operator or some of them operate their own subscriber search network for their own subscribers only.

In FIG. 4, independent subscriber search networks are shown for three network operators N 1, N2, N3 and links are shown, via which the alternate access to the subscriber-identifying data of a foreign network is nevertheless is possible. In the example shown, this is achieved by linking outputs of the network level L2. In its circuit arrangements LSSML3, each subnet manages the ones assigned to it

Subscriber access switching centers.

When setting up the subscriber search network links or when setting up a new subscriber line, e.g. for a subscriber station TST.N1.1, an entry of his subscriber-identifying data is generated in the memory LMML3.N1.1.S of a circuit arrangement LSSML3.N1.1 assigned to him under the subscriber's telephone number (personal number PR). In addition, in level L2 in the switching module LSSML2.N1.1 and in level L1 in the module LSSMLl .Nl. l The assignments to the respective output, which leads to the corresponding higher-level or to the corresponding lower-level circuit arrangement, are defined under his call number. Furthermore, entries are generated for the cross-connection lines shown in FIG. 4, for example from LSSML2.N1.1 to LSSML2.N3.15, under the same telephone number, which in each case mark the outputs to the partial subscriber search network of the network operator N1. Of course, this happens mutually and analogously, if subscribers of the other subnets (N2, N3) are set up.

If a subscriber who is connected to the subscriber access switching center LE.N3.X1 of the network N3, for example, dials the subscriber number of the subscriber TLN1 who can currently be reached at the subscriber station TST.N 1.1, the search process for his subscriber-identifying data, in particular for the connection location of his current location (connection location of the subscriber station TST.N 1) initially from the access switching center LE.N3.X1 to the circuit arrangement LSSML3.N3.1. Since there is no entry there, the search continues to the hierarchically higher-level circuit arrangement LSSML2.N3.1, now based on the setup procedure described above under the subscriber's phone number TST.N 1.1 an entry is found that marks the link output to the subnet N 1 (LSSML2.N 1.1). From here, the entry TST.N1.1 is now found in the circuit arrangement _ LSSML3.N1.3 in the manner already described, and the subscriber-identifying data can now be sent to the original circuit arrangement LSSML3, which initiated the request, via the CCS7 interconnect Lines are transmitted.

The subscriber-identifying data are forwarded to the local exchange LE.N3.X1 of the operator of the network N3, so that the establishment of the connection via the switching systems of the actual telecommunications networks (subsystem 1), as usual, using the call number with the actual connection location of the subscriber station TST. N 1.1 can take place.

The invention enables the connection of asymmetrical subnetworks or second subsystems in all levels, i.e. that the subnets or second subsystems not only in level L2 but alternatively e.g. can also be linked in the levels L1 and / or L3.

A circuit arrangement (for example LSSML3.N1.1) for searching subscriber-identifying data in the system shown is a control unit LSSML3.-N 1.1. CPU assigned with a control program. This is structured as follows: a search message MES is used to search for subscriber-identifying data. SEARCH formed, which consists of at least one search term (for example, the personal telephone number PR of a subscriber, on the basis of which the search is carried out), and the address of the circuit arrangement forming the search message LSSML3.N1.1, a first check is made in the memory LSSML3.N 1. 1.S of the first circuit arrangement LSSML3.N1.1 forming the search message is carried out after the presence of the subscriber-identifying data, the search process being ended if the result of the check is positive, whereas if the result of the check is negative, the search message is routed via a second circuit arrangement LSSML2.N 1 .1 of level L2, which is hierarchically higher than the first circuit arrangement LSSML3.N1.1 forming the search message, the information identifying the further search path is thereby im Memory LSSML2.N1.1.S of the second circuit arrangement LSSML2.N 1.1 is queried, and the further search path is continued in accordance with this information, either hierarchically ascending to a further circuit arrangement LSSML l .N l. l (level L1) or cross-operator network, in particular to a second circuit arrangement LSSML2.N3.15 in level L2 or hierarchically descending to a further first circuit arrangement LSSML3.N 1.15 in level L3, whose memory LSSML3.N1.15.S the desired subscriber-identifying data contains, so that a query for the presence of the subscriber-identifying data leads to a positive result.

The participant-identifying data for which a query has led to a positive result are checked and / or changed depending on the type of a message (IT1, IT2, ..) that triggered the formation of the search message, and / or changed, and / or transferred and / or deleted to a memory of another first circuit arrangement (for example LSSML3.N3.200).

In a circuit arrangement (eg LSSML2.N 1., LSSMLl .N l. L) of a higher level L2, L l, the information designating a further search path is corresponding to a result of the check, and / or the change, and / or the transmission and / or the deletion changed.

If the checking, modification and / or deletion of the subscriber-identifying data is not carried out in the circuit arrangement that formed the search message, but in another

Circuit arrangement of level L3, so this latter Circuit arrangement a receipt message are formed, which is transmitted to the circuit arrangement forming the search message. This transmission takes place on the basis of an address of the circuit arrangement forming the search message, this address being transmitted with the search message.

The search message MES. SEARCH and the acknowledgment message MES.IDAF are all first transmitted hierarchically in ascending order, then, if necessary, in the same subsystem hierarchy level via trunk groups and finally in hierarchical descending order in subsystem 2.

The information that is transmitted from one circuit arrangement LSSML3 of level L3 to another circuit arrangement LSSML3 of level L3 includes information INF.SERV1.1, INF.SERV1.2, ..., the service features SERV1.1., SERV1. 2, .., denote.

The circuit arrangements of level L2 each contain a memory (e.g. LSSML2.N3.15.S) in which information INF 1. POINT, INF2. POINT, ... are stored, which indicate a transmission path section on which search reports are made. This information particularly designates numbers of trunk groups and becomes MES depending on the received search messages. SEARCH and / or receipt messages updated.

The system shown in FIG. 4 allows, among other things, the following different location changes of subscribers and a corresponding call number portability, it being assumed that the circuit arrangements LSSML3 are assigned to a local exchange, the circuit arrangements LSSML2 to a node exchange and the circuit arrangements LSSML 1 to a main exchange:

a) within one's own local exchange or plant (catchment area of a circuit arrangement LSSML3); b) from a local exchange of an operator (carrier) in the network N 1 (catchment area, for example the circuit arrangement LSSML3.N 1.1) to the same local area of another operator in the network N2 or N3 (catchment area for example the circuit arrangement LSSML3.N3.200); c) within its own node switching area (catchment area of a circuit arrangement LSSML2); d) from a node exchange area of an operator (catchment area, for example the circuit arrangement LSSML2.N 1.1) to the corresponding node exchange area of another operator (catchment area for example the circuit arrangement LSSML2.N3.15); e) within its own main switching center area and f) from a main switching center area of one operator to a main switching center area of another operator.

The connection between a local exchange and an Intelligent Network Interface INI of the circuit arrangement LSSML3 corresponds to a bidirectional signaling channel section with PCM 30 (G707) interface conditions. The bit rate is 64 kb / sec.

The system, which enables unlimited number portability, is further characterized by the practically 100% utilization of the number of numbers. In addition, short numbers can be freely assigned for function connections and for service and special service connections. Since the personal number PR does not have a location-determining or other direction-determining component in the numbering system used, the number contingent for short numbers can be below the max. Make full use of the number. An end-of-dial criterion is used for the optimal use of short numbers. As an alternative to this, the end of the dial can also be determined, for example in the case of calls from other networks, by a so-called "guard time", for example a pause of 3 seconds. Due to the lack of a local identification code, there is a particular advantage, especially for short numbers, that, for example, large mail order companies, corporate and government networks, travel agencies and other units can be reached nationwide under one and the same number, regardless of whether they are regionally via one or more gateways feature.

5 shows a system which is structurally expanded compared to the system shown in FIG. The system includes a continental network for e.g. 1 billion subscribers with uniform 9-digit personal phone numbers PR. The peculiarity of this system configuration is that any number of country subnets N 1, N2, N3, N4 ..., N15 and NUK, NFR, NIT, N14 via uniform modules LSSMLo, LSSMLi through further levels Lo and Li into one uniform continental subscriber search network are interconnectable. This means a temporary change of location (roaming) or a constant change of location with a uniform number, e.g. Europe-wide at any network access location and the search of the subscriber-identifying data via any sub-search network (subsystem 2) guaranteed. The special features of such a continental subscriber search network (subsystem 2) are described with reference to FIG.

A network NGT (German Telekom Net; N4), which e.g. has a plurality of circuit arrangements LSSML3 of a level L3, a plurality of switching modules LSSML2 of a level L2 and a switching module LSSMLl of a level L1 is connected via a further switching module LSSMLi with e.g. 14 further networks Nl - N3, N5 - N15 and via a further switching module LSSMLo with a further 14 networks, including a network NUK (United Kingdom Net), a network NFR (France Net), a network NIT (Italy Net). This enables systems with a continental and global catchment area to be formed.

It is now assumed that a subscriber who is connected to the local exchange LE. l of the network N4 is connected in the catchment area of the circuit arrangement LSSML3.N4.1, dials a personal call number PR of a subscriber, whose subscriber-identifying data are managed in the circuit arrangement LSSML3 of the subscriber search network N 14 (for example Spain; left in FIG. 5). According to the search pattern according to the invention, no entries are found in the circuit arrangements LSSML3.1, LSSML2.1, LSSML 1.1 of the network N4 under the personal number dialed, so that the search message formed arrives at a circuit arrangement LSSMLi. Here, too, there is no entry for the personal number dialed, so that the search message continues to arrive at a circuit arrangement LSSMLo. In accordance with the method already described when setting up the subscriber search parameters, an entry is present in the circuit arrangement LSSMLo for the selected personal telephone number, which in the example described marks the output 14.

The same search method is used in descending order via this output, which has also already been described. The entry of the corresponding subscriber is found in the circuit arrangement LSSML3 of the network N14. Here, too, the origin address of the circuit arrangement LSSML3.N4.1 is part of the search message, so that finally the subscriber-identifying data of the called subscriber can now be transmitted there. This enables the connection to be established across national borders.

According to the invention, therefore, the establishment of a telecommunications connection is preceded in each case by a search of the call number via the current connection location of a desired subscriber. The call number of the called subscriber dialed by the calling subscriber is only used to find the subscriber-identifying data of the called subscriber.

6 shows a system with International Gateway Exchange facilities IGEn, ..., IGE 1 or interconnect exchange facilities ICEn, ..., ICE, which have a national operator network N 1 with another national network NE connect. This system realizes global reachability of subscribers and extends beyond the limits of their own telecommunications network (subsystem 1). For this purpose, transitions between the IGE or ICE devices and the circuit arrangements LSSML3 are implemented according to the invention. These transitions serve two main purposes:

On the one hand, the participants in a subsystem 2 are able to change locations worldwide (for example roaming) in that each participant receives the choice of a corresponding code via IGE / ICE access to a circuit arrangement LSSML3 and can thus enter a lock-on message to change his connection location information . On the other hand, the IGE / ICE facilities generate a search message for the subscriber-identifying data for incoming calls from abroad (NE network) or foreign networks, so that from here, too, the connection to any current location of a called subscriber to the LSSM network (subsystem 2) can be switched through.

In a closed number range such as the Federal Republic of Germany with several network operators, where network operators do not have a compatible facility for call number portability or a personal number service, all call numbers of the foreign networks can also be managed in the subsystem 2 according to the invention.

For this purpose, memory locations for so-called pseudo entries are provided in the memories of the circuit arrangements LSSML3, which identify the participants of the corresponding foreign networks.

6, the circuit arrangement LSSML3.1 in the network N 1 is assigned to the International Gateway Exchange devices IGE1 or an Interconnect Exchange device ICE 1. A control unit is assigned to this circuit arrangement LSSML3.1, to which a control program configured in the following manner is assigned: triggered by a further message ITE from a subscriber TLN2, which has been entered into a subscriber station (for example TST.NE. l) of the further network NE and which contains information INF.LOE and a subscriber-specific telephone number PR2 of the subscriber, which signifies a registration procedure LOCK ON.E. TLN2 includes, the connection location of this subscriber station TST.NE. l In the further network NE, information identifying INF 1.PORT.TST.NE is generated; and this information is stored in a memory LSSML3.S assigned to the subscriber TLN2.

The devices IGE / ICE are preferably connected to the circuit arrangements LSSML3 like local exchanges LE. The procedures for the "lock on" and the establishment of a connection are transparent with regard to the structure, signaling and numbering of the foreign network NE.

7 illustrates an embodiment of the circuitry or functional structure of the circuit arrangement LSSML3. This structure is described below.

The circuit arrangement LSSML3.N 1.1, which can be formed by a computer externally connected to a switching system, consists of at least one signaling interface module INI, INF (Intelligent Network Interface), each with a CCS7 format generation unit CFE, CFE '(CCS7 format generation unit, Common Signaling Format Generator), via the signaling information or messages between the computer (circuit arrangement LSSML3.N 1.1) and the local exchange LE.N. l or private branch exchange NST1 (in Fig. 4) or CCS7 network.

The computer contains a storage (storage) LSSML3.N 1 .1.S, which has a first storage area HF (Destination Field), a second storage area CLR / TST (Common Location Register / Subscriber Status Table) and a third memory area (working memory, main memory) AS.

First information (INF. PORT) can be stored in the first memory area HF, which designates the connection locations of subscriber stations (e.g. TST.N l. L in Fig. 4) and thus indicates the current presence of subscribers in the catchment area of the circuit arrangement at these connection locations.

Information (INF.SERV.) Can be stored in the second memory area CLR / TST, which designates switching parameters of predeterminable subscribers. These parameters include e.g. Authorization information, interface condition, equipment (fax, telephone) and the like. A total of the following are stored in the memory LSSML3.S: the subscriber-specific call numbers PR1, PR2, ... of those (“home”) subscribers TLN1, TLN2, ... for whom the

Message reporting system LE.Nl. l, to which the circuit arrangement LSSML3.N1.1 is assigned, is activated for incoming and outgoing telecommunications connections;

INF1.PORT.TST.N1.1, INF.PORT.TST.N1.2, ... the physical connection locations of subscriber stations TST.Nl. l, TST.N1.2,

... the LE.N lemming system. designate l that are assigned to the above-mentioned subscribers TLN 1, TLN2, ...; possibly the PIN PIN1, PIN2, ... of this subscriber TLN1, TLN2, ...; and - if applicable, information INF.SERV1.1, INF.SERV1.2, ..., the service features SERV1.1., SERV1.2, .., which e.g. are assigned to the subscriber TLN1.

The circuit arrangement LSSML3.N 1.1. has a control unit LSSML3.N1 .1.CPU (micro-central processing unit) on which, in the exemplary embodiment shown, a call number register (incoming information register) RR1, ..., RRn is assigned, in which personal telephone numbers PR1, ..., for example of subscribers entering messages ITl, can be stored.

The control unit LSSML3.N 1.1.CPU also implements functions that use “call number register RRl .... RRn”, “decoder (Personal Number Decoder) DC”, which evaluates personal call numbers, and “marking information register (outgoing information register ) MRl .... MRn ".

The control program of the control unit is designed in such a way that triggered by the respective supplied messages IT1, the information stored in the memory areas HF, CLR / TST is processed.

Depending on the extent of the dynamic load and the memory requirement, the control unit consists of one or more microprocessors. Hard disks D, D 'serve as back-up storage for all programs and storage areas for the phases start up and reload in the event of a system failure. In addition, other back-up storage mechanisms can also be provided.

To ensure the highest possible availability, all facilities are redundant (LSSML3.N1.1.CPU, LSSML3.N1.1.CPU '; LSSML3.N1.1.S, LSSML3.N 1.1.S'). In regular operation, the facilities work in load sharing mode, i.e. each control unit LSSML3.N 1.1.CPU LSSML3.N 1.1.CPU 'processes approx. 50% of the call requests.

The interface circuits CFE, CFE 'can be connected to private branch exchanges or public switching systems LE, preferably as standard modules via 64 kb / s digital signal lines and with standard CCS7 signaling protocols. Their number is selected according to the total traffic in the main traffic hour. The circuit arrangements LSSML2 and LSSML 1 are identical and, in terms of their circuitry structure, are essentially structured like the circuit arrangements LSSML3.

The circuit arrangement LSSML3 shown in FIG. 8 consists of the function blocks 3, 4 and 5:

INI (Intelligent Network Interface) 3 with physical interface (e.g. n x 64 kb / s) to the signaling network (e.g. CCS7 network); Control unit (LSSML3.CPU) or control logic 4 and - data memory 5 (5.3a, 5.3b) for storing the subscriber-identifying data 5.3.a of the subscribers to be managed (ie only those registered in the assigned catchment area) and for storing the address 5.3.b. the associated higher-level circuit arrangement LSSML2.

In FIG. 8, 6 denotes the call number, 7 subscriber-identifying data and 5.6 the address of the higher-level circuit arrangement LSSML2.

Those received by the INI input port 3 from the CCS7 network 8

Signaling messages (IT messages) are resolved in INI function block 3. The subscriber-identifying data contained in signaling messages and assigned to the call number are stored by means of the control logic 4 (LSSML3.CPU) in the data memory 5.3a with reference to the call number or read from the data store 5.3a by means of the control logic 4 and transferred to the INI function block 3.

Before changing subscriber-identifying data (e.g. in the event of a permanent change of location), the function block 4 checks the closeness of the secret numbers stored in a signaling message and in the data memory 5 for coherence.

In the case of unmanaged subscribers, no subscriber-identifying subscriber-related data are found in the data memory; in this In this case, the INI function block 3 is given the address of the assigned higher-level circuit arrangement LSSML2 stored in the data memory.

The data formed or called up by the function block 4 (subscriber-identifying data or address of LSSML2) are transferred to the signaling network 8 via the INI output port 3.

The individual function blocks are designed redundantly and can be operated in load sharing mode depending on the different signaling messages.

8 also shows the functional structure of the circuit arrangements LSSML2, LSSMLl, which each consist of the following function blocks 3, 4 and 5:

INI (Intelligent Network Interface) 3 with physical interface (e.g. n x 64 kb / s) to the signaling network 8;

Control unit (LSSML2.CPU; LSSMLI. CPU) or control logic 4 with decoder function for the targeted control function of a data memory by means of a telephone number; and

Data memory (4.3a, 4.3b) for storing number-related addresses 4.3a of subordinate circuit arrangements LSSM and addresses 4.3b of higher-level circuit arrangements LSSM in the case of managed subscribers or of circuit arrangements LSSML 1 or central facility AC for unmanaged subscribers.

In FIG. 8, 6 denotes the call number, 7 subscriber-identifying data and 4.6 the address of the higher-level circuit arrangement LSSM.

The signaling messages (messages IT) received by the INI input port 3 via the signaling network 8 are stored in the INI function block 3 dissolved. The decoder is controlled with the number contained in a signaling message.

The result (e.g. 4 bits with 15 subordinate and one superordinate circuit arrangement LSSM) refers to an address entry in the data memory. The selected address entry (which designates one of, for example, 15 subordinate circuit arrangements LSSM or the superordinate circuit arrangement or the central device) is transferred to the network 8 via the INI function block 3. Here, too, the individual function blocks have a redundant structure and can be operated in load sharing mode depending on the different signaling messages.

FIG. 9 shows the structure of data fields in a circuit arrangement LSSML3 (FIG. 9a) and in a central device AC (FIG. 9b).

The data field shown in Fig. 9a contains an identifier of the operating company (carrier id), ringing pattern information, a personal number (personal number) PR, an identifier of the access exchange (exchange id), a connection location information (port no.), Information about the services assigned to the subscriber concerned (teleservices) and his PIN PIN.

The data field shown in FIG No,), information about the services assigned to the subscriber concerned (teleservices) and his PIN PIN. A "spare" field can be provided for further information. A system with an integrated corporate network 9 is shown in FIG. The system again comprises a first subsystem 1 and a second subsystem 2. In addition, the corporate network 9 is subordinate to the first subsystem 1. Like the first subsystem, the corporate network 9 is structured as desired and, depending on the geographical distribution, is connected to one or more subscriber exchanges of the first subsystem 1. An additional second subsystem 10 is assigned to the corporate network 9. This additional second subsystem 10 represents a separate subscriber search network for the corporate network 9 and is designed exclusively for the needs of the corporate network 9. In the example shown, subsystem 10 has two hierarchy levels, for example. The subsystem 10 is connected at its lowest level to the lowest level of the corporate network 9. The corporate network 9 thus behaves with its subsystem 10 in the case of internal calls as the previously described first and second subsystems 1, 2, so that reference can be made to the statements there. In addition, the additional second subsystem 10 is connected to the second subsystem 2 and subordinate to this. When switching between participants from the corporate network 9 with external participants from the first sub-1, the additional second subsystem 10 behaves like an ordinary lowest hierarchical level of the second subsystem 2. Accordingly, the participant-identifying data are not stored in the assigned LSSML3 of the second subsystem 2 , but a reference to the assigned LSSM of the subscriber in the additional second substem 10. The advantage of this arrangement is that the public subscriber search network or subsystem 2 does not have to be used for internal subscriber searches, which can only be done by dialing into the first subsystem 1 it is possible.

If there is no second Substem 2, the second additional behaves

Subsystem 10 together with the corporate network 9 in internal exchanges such as the first and second substem 1, 2 and are those in the

The mode of action cannot be distinguished from this. For external calls As a result of the absence of the second subsystem 2, the following functionality occurs: Calls are directed by the first subsystem 1 only to the PABX (dialed number) that manages the home port. Subsequently, after a query and conversion in subsystem 10, a forwarding to the current location takes place, possibly by call forwarding in first subsystem 1.

Due to the usually relatively small number of subscribers in a corporate network compared to a telecommunications network, all subscriber data can be stored in a single LSSM module. According to the architecture and philosophy for the telecommunications network, this LSSM module would be assigned to several PABXs. However, if the PABX were spatially distributed at different locations, this would mean that the search process would always have to be connected to one LSSM module over long distances. For this reason, this strict architecture is preferably abandoned at the corporate networks and each PABX is assigned a separate LSSM module, each of which contains the complete data set of the corporate network. In this case, the LSSM modules are not only identical in terms of hardware but also completely identical in terms of data, so that the subscriber search is carried out exclusively in the area of your own PABX. With this architecture, however, it must now be ensured that when an entry changes in an LSSM module, this is adopted by the other LSSM modules. A corresponding up-dating is required for this. For this purpose, the LSSM modules are preferably connected to one another via an intra-net. If an entry is then changed in an LSSM module, this LSSM module generates a change request to all other LSSM modules, which is forwarded to the LSSM modules via the Intra-Net, so that all data records of the LSSM modules are then identical again are.

The invention also relates to a programmable message switching system (for example LE / OVSt in FIG. 1; LE.N 1. 1 in FIG. 4) which is connected to a circuit arrangement LSSML3.N 1.1 can be connected. A control program assigned to the message switching system is designed such that a control station TST.N. l The message IT1, IT2, ... entered in the message switching system is transmitted to the circuit arrangement LSSML3.N 1.1. Furthermore, this control program can be designed in such a way that the connection position of the subscriber station TST.N. l significant information INF 1.PORT.TST.N 1.1 is transmitted to the circuit arrangement LSSML3.N 1.1. The control program can also be designed in such a way that data (subscriber-identifying) transmitted by the circuit arrangement LSSML3 is processed for a telecommunications connection or used without further processing. The transmitted data can also be used for a display, for example on an optical display device of a subscriber station (TST.N. 1, NT 1 1 in FIG. 4). On the other hand, the control program can be designed in such a way that it takes over the described operating functions of the circuit arrangement LSSML3.

The invention also relates to a telecommunications private branch exchange NST1 (FIG. 4) for connection to a circuit arrangement described above (e.g. LSSML3.N1.1), the control program of the private branch exchange being designed in such a way that extensions NT1 1, ...; NT21, ... of the system NST1 like other subscriber stations TST.Nl. l be managed. This control program can also be designed in such a way that it takes over the described operating functions of the circuit arrangement LSSML3.

A closed telephone number space can be assigned to a single telecommunication private branch exchange or an arrangement of a plurality of telecommunication private branch exchanges, which, for example, form a so-called corporate network, which is part of the total call number space of the system including all local exchange and private branch exchanges. In the system according to the invention, the performance feature of the call number portability and other functionality are equally for Extensions (NT1 1 in Fig.4) and main line subscriber stations (TST.N l. L) provided.

The invention also relates to a method for producing communication connections, in particular in a telecommunication switching system described above. In the telecommunication switching system, for example, the circuit arrangements LSSL3.N.1, and LSSML3.N3 described above are implemented as additional devices. However, the operating functions defined by the method can e.g. also be defined by the control program of the local exchange (s) LE.

Within the scope of the method according to the invention, which is carried out in particular in a system described above, subscriber-identifying data from the second subsystem 2 are only transmitted via an interface (IF 1, IF2 in FIG. 1), which is between a first circuit arrangement LSSML3 of level L3 and a or several telecommunications systems assigned to this circuit arrangement LSSML3 (LE / OVSt in Fig.l or LE.Nl.l, ..., in Fig. 4) is transferred to the first subsystem 1. As already described, depending on the degree of expansion of the system, several parallel interfaces IF can be present, each of which connects local or subscriber access switching systems to a circuit arrangement LSSML3 of level L3. The subscriber-identifying data are then transmitted via a plurality of the interfaces mentioned (IF 1, IF2 in FIG. 1).

In the system, neither the calling number of the calling subscriber nor the calling number of the called subscriber provides information about the distance that actually has to be bridged between the two subscribers in order to establish the connection. Call data are usually recorded in the originating exchange (calling exchange); but also in network switching centers and also in the destination exchange (called exchange) call data recording is possible and for special purposes, for example for the settlement of income (accounting) between Network operator management required. In the system, both the calling and the called subscriber can be the originators of call charges that cannot be estimated before the connection is established. In the event of a change of location of the called subscriber, on the other hand, especially if one of the two subscribers or both subscribers are using third-party networks (e.g. a cellular network), the caller may be responsible for higher but also lower call charges, which, for example, cannot be foreseen by the calling subscriber because he suspected the called party to be in his usual place of residence. The two participants can therefore be given a so-called "guard time" of, for example, 5 seconds, in which they can end a conversation if it seems too expensive for them. You then only pay a minimum fee for establishing a connection.

In a system described above (e.g. according to FIG. 1) it is checked whether the call number of the called subscriber was originally assigned a connection location in the system that is not equal to the currently assigned connection location. Fictitious charges for the originally assigned connection location and the actual charges for the currently assigned connection location can be determined using the data contained in a call data block.

At least the following data is stored in such a call data block: a. Calling exchange- (5 digits) and calling line- (6 digits) identity; b. Personal number (PR) of the calling subscriber; c. Personal number (PR) of the called subscriber and d. Destination exchange (5 digits) and destination line (6 digits) identity;

The data ac are formed in the originating switching center, while the data d are formed on the basis of feedback from the target switching center as part of the connection setup. Provision can be made for the calling subscriber to collect charge data that is appropriate for the user, so that there are no disadvantages with regard to higher call charges. In this case, the called subscriber is assigned the higher fees or the corresponding fee difference.

The control programs of the LSSML3 circuit arrangements according to the invention can be designed in such a way that various performance features are implemented. For example, by entering information into a subscriber station, a subscriber can initiate a temporary storage of information which, for an incoming call, gives him a busy tone. playback of an announcement text or redirection of the connection to a mailbox (sleeping mode).

Reference list

first subsystem, telecommunications network (TC)

2 second subsystem, subscriber search network 3 intelligent network interface INI 4 control logic, LSSM.CPU 5 data memory 6 personal number PR 7 subscriber-identifying data signaling network, CCS7 network

LE / OVSt 1 1 -11 local exchanges, "first communication exchanges"

2x second message switching systems

TSTl-TSTn subscriber stations IF interfaces

Ll, L2, L3 levels, hierarchy levels

LSSML3 circuit arrangements in level L3, Link Subscriber Search

Module in level L3

LSSML2 circuit arrangements in level L2 LSSMLl circuit arrangements in level Ll

AC central device (Authentication Center)

Sl Subscribers

LE Local Exchanges

DE District Exchanges NE Nodal Exchanges

CE Central Exchanges

IGE International Gateway Exchange facility

PRl Call Number Interface (Personal Number Interface)

STP signaling transfer point, CCS7 signaling transfer point POS input device for central device AC (Point of Sales)

BD facility for determining fees T, V, O, A, D1, D2, E network operator

S / N number of subscriber positions

N1, N2, N3 .. Operator networks LSSML3.N1.1 Circuit arrangement No.1 in level L3 in the network

Nl, the search message MES. SEARCH forms

LSSML3.N3.200 Circuit arrangement No.200 in network N3, which is the result of the search message MES. SEARCH to be identified

"Target Circuitry" is

LSSML3.N1.1.S memory in LSSML3.N1.1 LSSML3.N1.1.CPU control unit CPU in LSSML3.N1.1

LE.Nl.l Telecommunication exchange no.1 in the network Nl

AC.Nl central facility in Nl

AC.Nl. S memory S in AC.Nl

AC.Nl. CPU control unit in AC.Nl TST.Nl.l subscriber stations

TST.N1.2 subscriber stations

TST.NE.l participant positions

NST1.NST2 private branch exchange

NT11, ... extensions in NST1 NT21, ... extensions in NST2

TLN1.TLN2 participants

PRl, PR2 Personal number

PINl, PIN2 secret number, personal identity number

SERV1.1.SERV1.2 TLN1 associated service features INF.SERV1.1 Information denoting SERV1.1

ITl, ... IT4 messages which can be entered in subscriber stations

ITE message entered in TST.NE.l which is the

Accessibility of TLN2 to TST.NE.l designated

MES. SEARCH search message INF. POINT information indicating a respective transmission path section Li, Lo levels (hierarchy levels)

NGT operator network of Deutsche Telekom

NUK operator network in Great Britain

NFR operator network in France NIT operator network in Italy

ICE Interconnect facility

NE external network

INI, INI 'interface modules

CFE, CFE 'CCS7 format generation unit RR number register

DC decoder

MR marking register

AS memory

HF, CLR / TST storage areas D, D 'storage medium

5.3a in LSSML3: Data storage for subscriber-identifying data

4.3a in LSSML2, LSSMLl data storage for addresses of subordinate LSSM 5.5 in LSSML3: subscriber-identifying data

4.5 in LSSML2, LSSMl: participant-identifying data

5.6 in LSSML3: address of LSSML2

4.6 in LSSML2, LSSML 1: Address of higher-level LSSM

E, Z Telecommunications exchanges Cl, ..., C31, ..., C21, ... routing modules

Claims

claims

1. System, in particular for the establishment of telecommunications connections, with first telecommunications systems (LE / OVST; LE.Nl. L, ...), which are subscriber access systems, in particular telecommunications switching systems, and possibly with second telecommunications systems (NE; DE; CE) , in particular telecommunications switching systems via which the telecommunications connections can be established, with subscribers (TLN 1, TLN2, ...) each having a subscriber-specific. connection location independent. system-unique call number (PRl, PR2, ...) is assigned, with at least one first circuit arrangement (LSSML3), which includes a memory (LSSML3.S), in which subscriber-identifying data (PRl, PR2, ..; PINl, PIN2, ..) including connection location information (INF. PORT) are stored, which designate connection locations via which the subscribers can be reached under their phone number for incoming telecommunication connections, characterized in that the first telecommunication systems and possibly the second telecommunication systems form a first subsystem (1) that a second subsystem (2) without telecommunications systems is provided, that the second subsystem (2) has at least one first circuit arrangement (LSSML3), and that the second subsystem (2) only with the first telecommunications systems (LE / OVSt; LE.Nl. l, ...) is directly connected.

2. System according to claim 1, characterized in that a plurality of first circuit arrangements (LSSML3) and second circuit arrangements (LSSM12, LSSML l) in the second subsystem (2) are arranged in at least two levels (L3, L2; L l) that in Storage (LSSML3.S) of the first circuit arrangements (LSSML3) subscriber-identifying data and information (each one) are stored in memories (LSSML2.S; LSSML IS.) Of the second circuit arrangements (LSSML2, LSSMLl) Denote section of a route of a search message for searching the subscriber-identifying data.

3. System according to claim 1 or 2, characterized in that first subscriber-identifying data, which identify a predeterminable subscriber (TLN1), are stored in a first memory (LSSML3.N1.1.S) of a first circuit arrangement (LSSML3.N 1.1) that the first subscriber-identifying data can be changed by means of a first message (ITl) which designates a new location of the subscriber (TLN1) and which optionally contains second subscriber-identifying data (PINl) which designate the same subscriber, the first message (IT l ) can be entered into any subscriber station of the first subsystem (1).

4. System according to claim 3, characterized in that the subscriber-identifying data after their change in the first memory

(LSSML3.N 1.1.S) remain or that the changed subscriber-identifying data are stored in a second memory (LSSML3.N3.200.S) which is assigned to a first circuit arrangement (LSSML3.N3.200) which is assigned to the new location is.

5. System according to any one of the preceding claims, characterized in that the first circuit arrangements (LSSML3) subscriber access systems (LE / OVSt) different geographical catchment areas and / or different operator networks (N l, N2, N3) are assigned and that the first circuit arrangements (LSSML3 ) Control units (LSSML3.CPU) are assigned to control programs which are designed in such a way that they are triggered by a second message (IT2), which denotes a constant change of location of a subscriber (TLN 1) and into any subscriber station of the first subsystem (1 ) or from a central device (AC.N 1) of the second subsystem (2), the first subscriber-identifying data from a first circuit arrangement (LSSML3.N3.200) of a first geographical catchment area and / or a first operator network can be transferred to a further first circuit arrangement (LSSML3.N 1.1) of another geographical catchment area and / or another operator network, the subscriber-identifying data in the first circuit arrangement (LSSML3.N3.200) of the first geographical Catchment area and / or the first operator network are deleted.

6. System according to any one of the preceding claims, characterized in that a device (BD) for determining telecommunications fees to be paid is provided in the system (1, 2), which is assigned a control unit with a control program designed in such a way that triggered by a third message (IT3) from a calling subscriber (TLN1), a telecommunication connection and possibly with an identity code of the calling subscriber (TLN1), charge information is recorded and this is assigned to the calling subscriber (TLN1).

7. System according to any one of the preceding claims, characterized in that a control program of a control unit (LSSML3.CPU) of a first circuit arrangement is configured in such a way that when a calling subscriber (TLN 1) is connected to a called subscriber ( TLN2) triggered by a fourth message (IT4) from the calling subscriber (TLN1), which denotes an outgoing telecommunication connection and which contains the personal number (PR2) of the called subscriber (TLN2), the connection location information (INF.) Assigned to the called subscriber (TLN2). PORT.2) is determined in the second subsystem (2) and is transmitted to the first subsystem (1) to establish the telecommunications connection.

8. System according to one of the preceding claims, characterized in that the second subsystem (2) instead of the connection to the first subsystem (1) or in addition to this connection to the first subsystem (1) via an interface a connection to a further telecommunications system (IGE / ICE), in particular an International Gateway Exchange facility (IGE) or an interconnect exchange device (ICE) between networks (N 1, N2) of different operators, which is arranged within the first subsystem (1).

9. System according to one of the preceding claims, characterized in that the system has at least two operating networks (N l, N2), and that in the memory (LSSML3.N1.1.S) of a first circuit arrangement (LSSML3.N1.1) In the second subsystem of the one operator network (N 1), subscriber-identifying data of the participants of the other operator network (N2) are stored.

10. System according to one of the preceding claims, characterized in that subscribers (TLN1, TLN2, ...) each have a secret number (PINl, PIN2, ...) assigned, and that the secret number (PINl, PIN2, ... ) is used in examination procedures that are carried out before changing participant-identifying data (INF. PORT) and / or before assigning information, in particular fee information, to a participant.

1 1. System according to one of the preceding claims, characterized in that the first subsystem (1) another sub-network (9) formed by large private branch exchanges or corporate networks is hierarchically subordinate to which a dedicated subscriber search network (10) is assigned, on the one hand is connected to the second subsystem (2) of the first subsystem (1) and, on the other hand, is connected at the lowest hierarchical level to the lowest hierarchical level of the subnetwork (9).

12. System according to one of the preceding claims, characterized in that on the lowest hierarchical level of the corporate network (9) arranged private branch exchanges are each assigned an LSSM circuit arrangement in which all subscriber data of the corporate network (9) are stored, the individual LSSM circuit arrangements for an up-dating are directly or indirectly connected to one another.

13. Circuit arrangement (LSSML3.N 1.1) for searching subscriber-identifying data in a system according to one of claims 2 to 1 1, characterized in that the circuit arrangement comprises a control unit (LSSML3.- N 1.1. CPU) with one configured in this way Control program is assigned that for the search of subscriber-identifying data, a search message is formed, which consists of at least one search term (PR), on the basis of which the search is carried out, and the address of the circuitry forming the search message (LSSML3.N 1.1), that a first Checking in the memory (LSSML3.N1.1.S) of the first circuit arrangement (LSSML3.N1.1) forming the search message, after the presence of the subscriber-identifying data, is carried out so that if the result of the check is positive, the search process is ended, and if the result is negative Result of the check, the search message is routed via a second circuit arrangement (LSSML2.N1.1), which the

The first circuit arrangement (LSSML3.N 1.1) forming the search message is hierarchically superior that the information identifying the further search path is queried in the memory (LSSML2.N1.1.S) of the second circuit arrangement (LSSML2.N 1.1), and that the further search path is corresponding this information is continued, either hierarchically ascending to a further circuit arrangement (LSSML l .N l. l) or across operator networks, in particular to a further second circuit arrangement (LSSML2.N3.15) or hierarchically descending to a further first circuit arrangement

(LSSML3.N 1.15), whose memory (LSSML3.N 1.15.S) contains the subscriber-identifying data searched for, so that a query for the The presence of the participant-identifying data leads to a positive result.

14. Circuit arrangement (LSSML3.N 1.1) according to claim 13, characterized in that the subscriber-identifying data for which one

Query has led to a positive result, depending on the type of message that triggered the formation of the search message, checked for a predefinable criterion, and / or changed, and / or transferred to a memory of a further first circuit arrangement and / or deleted .

15. Circuit arrangement (LSSML2.N 1., LSSMLl .Nl. L)) according to claim 14, characterized in that the information characterizing a further search path corresponding to a result of the check, and / or the change, and / or the transmission and / or the deletion is changed.

16. Central device (AC.Nl) for a system according to one of claims 1 to 12, wherein the central device is arranged in the second subsystem (2) and assigned to an operator network (Nl), characterized in that the central device (AC.Nl) has a memory (AC.Nl. S) in which subscriber-identifying data can be called up for each subscriber (TLN1, TLN2) of the operator network (Nl) on the basis of an assigned call number (PRl, PR2, ...).

17. Central device (AC.N l) according to claim 16, characterized in that a control program of a control unit (AC.N l. CPU) triggered by a message supplied to the central device (AC.Nl), which is entered into an operating element or at generated a system error will, subscriber-identifying data to a circuit arrangement (LSSML3.N1.1; LSSML3.N3.200) are transmitted.

18. Circuit arrangement (LSSML3) for a system according to claim 8, in particular for connection to a circuit arrangement according to one of the

Claims 13 or 14, characterized in that it is assigned to the International Gateway Exchange facility (IGE) or an interconnect exchange facility (ICE) which connects an operator network (Nl, N2, N3) with a further network (NE), that the circuit arrangement (LSSML3) has a control unit (LSSML3.CPU), to which a control program is assigned that is triggered by a further message (ITE) from a subscriber (TLN2) which is in a subscriber station (TST.NE. l) of the further network (NE) has been entered and which is a further registration procedure (LOCK ON.E) designating information (INF.LOE) and the individual subscriber

Call number (PR2) of the subscriber (TLN2), an information (INF1.PORT.TST.NE) designating the connection location of this subscriber station (TST.NE. l) in the further network (NE) is generated and assigned to the subscriber (TLN2) Memory (LSSML3.S) is saved.

19. Programmable message exchange system (LE.Nl. L) for a system according to one of claims 1 to 12, in particular for connection to a circuit arrangement (LSSML3.N1.1) according to one of claims 13, 14 or 18, characterized in that a the control program assigned to the message switching system is designed in such a way that a message (IT1, ...) entered in a subscriber station (TST.Nl. l) of the message switching system is transmitted to the circuit arrangement (LSSML3.N1.1) and by the circuit arrangement (LSSML3.N1.1) transmitted data can be processed for setting up a message connection and / or for an advertisement.

20. Programmable message exchange system (LE.N l. L) for a system according to one of claims 1 to 12, characterized in that the circuit arrangement (LSSML3.N1.1) is implemented in a control unit of the message exchange system.

21. Mobile radio telephone, for redirecting predeterminable call numbers from a telecommunications network with a search network to the mobile radio telephone, in particular in a system according to one of claims 1 to 12, comprising a subscriber identity module SIM, in which at least one mobile telephone number assigned to the mobile radio telephone is stored, characterized that in the Subscriber Identity Module SIM additionally a personal number (PRl, PR2, ...) and / or other numbers from fixed networks with their associated Personal Identity Numbers (PINl, PIN2, ...) are stored, which can be selected and with the cell phone number to one

Mobile Switching Center MSC are transferable.

22. A method for establishing telecommunication connections in a system according to one of claims 1 to 12, characterized in that the first subscriber-identifying data that a predeterminable subscriber

Identify (TLN 1), in the memory (LSSML3.S) of a first circuit arrangement (LSSML3), that the first subscriber-identifying data are changed by means of a first message (ITl), which denotes a temporary change of location of the subscriber (TLN 1) and which optionally contains second subscriber-identifying data (PIN 1), which designate the same subscriber, and that the first message (IT 1) is entered in any subscriber station of the first subsystem (1).

3. A method for establishing telecommunications connections in a system according to one of claims 1 to 12, characterized in that the first subscriber-identifying data, which identify a predefinable subscriber (TLNl), in the memory (LSSML3.S) of a first circuit arrangement (LSSML3) are stored that the first circuit arrangements (LSSML3) subscriber access systems (LE / OVSt) are assigned to different geographical catchment areas and / or different operator networks (Nl, N2, N3) that are triggered by a second message (IT2), which indicates a constant change of location of a subscriber (TLNl) and entered into any subscriber station of the first subsystem (1) or from a central facility (AC.Nl) of the second subsystem (2), the first subscriber-identifying data from a first circuit arrangement (LSSML3.N3.200 ) a first geographical catchment area and / or a first operating network to another first circuit arrangement

(LSSML3.N1.1) of another geographic catchment area and / or another operator network and the subscriber-identifying data in the first circuit arrangement (LSSML3.N3.200) of the first geographic catchment area and / or the first operator network are deleted.

24. A method for establishing telecommunications connections in a system according to one of claims 6 to 12, characterized in that the device for determining telecommunications fees to be paid is triggered by a third message (IT3) from a calling subscriber (TLNl), which denotes an outgoing telecommunications connection and optionally provided with an identity code (PIN1) of the calling subscriber (TLN 1), fee information is recorded and this is assigned to the calling subscriber (TLN 1).

5. The method according to any one of claims 22 to 24, characterized in that during the establishment of an outgoing connection of a calling subscriber (TLNl) to a called subscriber (TLN2) triggered by a fourth message (IT4) of the calling subscriber (TLNl), which designates an outgoing telecommunication connection and which the personal

Call number (PR2) of the called subscriber (TLN2) contains the connection location information (INF. PORT.2) assigned to the called subscriber (TLN2) in the second subsystem (2) and is transmitted to the first subsystem (1) for establishing the telecommunication connection.

26. The method according to any one of claims 22 to 25, characterized in that this is carried out in a system in which the second subsystem (2) instead of the connection to the first subsystem (1) or in addition to this connection to the first subsystem ( 1) a connection to another telecommunications system via an interface

(IGE / ICE), in particular an International Gateway Exchange device (IGE) or an Interconnect Exchange device (ICE) between networks (Nl, N2) of different operators, which is / are arranged within the first subsystem (1).

27. The method according to any one of claims 22 to 26, characterized in that participants (TLNl, TLN2, ...) are each assigned a secret number (PIN l, PIN2, ...), which are used in test procedures before a Change of participant-identifying data (INF. PORT) and / or before an assignment of information. in particular

Fee information can be performed on a subscriber.

28. A method for searching subscriber-identifying data in a system according to one of claims 2 to 12, characterized in that for searching subscriber-identifying data, a search message is formed which is based on at least one search term (PR) the search is carried out and from the address of the circuit arrangement forming the search message (LSSML3.N1.1), there is a first check in the memory (LSSML3.N 1. 1.S) of the first circuit arrangement forming the search message (LSSML3.N 1 .1) is carried out after the presence of the subscriber-identifying data, that if the result of the check is positive, the search process is ended, that if the result of the check is negative, the search message is carried out via a second circuit arrangement (LSSML2.N1.1) which the the

The first circuit arrangement (LSSML3.N 1.1) forming the search message is hierarchically superordinate that the information designating the further search path is queried in a memory (LSSML2.N1.1.S) of the second circuit arrangement (LSSML2.N 1.1), and that the further search path is continued in accordance with this information, either hierarchically ascending to a further circuit arrangement (LSSML l .Nl. l) or across operating networks, in particular to a further second circuit arrangement (LSSML2.N3.15) or hierarchically descending to a further first circuit arrangement

(LSSML3.N1.15), whose memory (LSSML3.N1.15.S) contains the subscriber-identifying data searched for, so that a query for the presence of the subscriber-identifying data turns out to be positive

Result leads.

29. The method according to claim 28, characterized in that the subscriber-identifying data for which a query has led to a positive result, depending on the type of message that triggered the formation of the search message, checks for a predefinable criterion. and / or changed, and / or in a memory of another first

Circuit arrangement are transmitted and / or deleted.

30. The method according to claim 29, characterized in that the information designating a further search path is changed in accordance with a result of the check, and / or the change, and / or the transmission and / or the deletion.

31. A method for diverting subscriber-specific, connection system-independent personal numbers (PRl, PR2, ..) and / or other numbers from telecommunications networks to a mobile radio telephone of a mobile radio network that communicates with the others

Telecommunication networks is connected via a search network, in particular in a system according to one of claims 1 to 12, comprising the following method steps: a) storing the call numbers to be forwarded with their associated personal identity numbers in a subscriber identity module SIM

Mobile radio telephones, b) optional selection of the telephone numbers stored according to process step a), c) activation of the mobile radio telephone and sending out the mobile telephone number and the selected telephone numbers with their associated personal identity numbers (PINl, PIN2, ..) to a Mobile Switching Center MSC of

Mobile network, d) generate a lock-on data record through the mobile network and e) write the mobile number in the current data field of the selected phone numbers if the personal identity numbers (PIN1, PIN2, ..) match.

32. Method for diverting subscriber-specific, connection system-independent personal numbers (PRl, PR2, ..) and / or other numbers from telecommunications networks to a cellular phone of a cellular network that communicates with the others

Telecommunications networks is connected via a search network. in particular in a system according to one of claims 1 to 12, comprising the following method steps: a) storing the call numbers to be forwarded with their associated personal identity numbers (PIN1, PIN2, ..) in a home location register of the mobile number in the mobile radio network, b) activating the mobile radio telephone and send out the mobile radio telephone number to a mobile switching center MSC of the mobile radio network, c) control the home location register (HLR) associated with the mobile radio number, d) search the home location register (HLR) for assigned call numbers to be forwarded, e) generate a lock-on Data record by the mobile network for the numbers to be diverted and f) write the mobile number in the current data field of the selected numbers, if the staff

Identity numbers (PIN1, PIN2, ..) match.