DE19964486B4 - Provision of additional services in subscriber line by integrating communication via circuit switching networks and packet switching networks - Google Patents

Abstract

At least one terminal device is connected to the subscriber line, and the subscriber line is directly or indirectly connected to a switch of a communication network selected by the user. Using an already existing connection between the switch (32,31) and the terminal (51,52), a request for a further incoming or outgoing connection is signalled. At least one additional service related to the new connection request or service request is provided at the subscriber line. A communication system and a switch are also claimed.

Description

The invention relates to a method for providing additional services to a subscriber line.

Background of the invention

With the deregulation of the telecommunications market is the user of telecommunications services a variety of telecommunications providers with associated communication networks available. In order to enable the switching of telecommunication connections from a communication network of a first provider to a second communication network of a second provider, the communication networks are interconnected by so-called interconnect connections (aka intercarrier connections). One also speaks of POIs (Point of Interconnect).

In particular, the former monopolist, Deutsche Telekom AG in Germany, has agreed to interconnect the respective communications networks with a large number of alternative providers of telecommunications services. Since the former monopolist has most of the local loops from each local exchange to the individual end users (so-called "last mile"), the alternative providers of telecommunications services are dependent on an interconnection of their networks with the former monopolist. With the abolition of the monopoly for the final access to the customer, for example due to deregulation regulations or new techniques, such as the realization of the end access by a radio link, the communication networks of the alternative providers will probably be interconnected more and more.

The resulting structure of several interconnected communication networks of different providers of telecommunications services makes the choices of a user, as well as his demands on the quality of the services provided increase. In particular, there is a need to provide a subscriber with additional services related to integration of telephone network services and Internet services at the subscriber line, be it the calling subscriber or the called subscriber. The provision of new services makes it possible to compete with the telecommunications service providers, which is not limited to price wars, but takes place in relation to the services offered.

Furthermore, there is currently an imbalance in that already existing services are available only to a calling party. For example, it has hitherto only been possible for a calling subscriber to select a specific communication network for a desired connection by preselection or on a call-by-call basis. This imbalance should be corrected.

In the document WO 97/20 424 A1 a call waiting service for a telephone line connected to the Internet is described. The situation is considered in which a first terminal is connected to the Internet via an Internet access device when a call from another terminal arrives at the first terminal via the PSTN (Public Switched Telephone Network). The incoming call is routed via the PSTN to the Internet access device that informs the called terminal of the incoming call via the existing Internet connection. The user of the called terminal has several possibilities to react to this information. According to one variant, it accepts the call, which is then terminated via the Internet connection.

The document WO 94/19877 A1 describes a telecommunication structure in which a public local exchange is connected via a cabling (wired local loop) and alternatively via a radio link (radio local loop) to terminals, in the latter case with the interposition of a base station. The "radio local loop" can be realized to a building or to individual terminals.

The documents US 5 574 783 A . WO 99/14924 A1 . CA 2 294 452 A1 . DE 44 11 767 A1 . EP 0 837 611 A2 and EP 0 935 364 A2 also describe providing services to a called subscriber line.

Object of the invention

It is an object of the present invention to provide a method which, in a telecommunication environment in which several communication networks of different providers are interconnected with different services, provides an end user with additional telecommunication services.

Summary of the invention

This object is achieved by a method having the features of claim 1. Preferred and advantageous embodiments of the invention are specified in the subclaims.

Thereafter, the invention is characterized in that, starting from an existing connection between the switch of a selected communication network and a terminal of the subscriber line, for an incoming further connection request or service request signaling between the switch and the subscriber connection on the already existing connection and then at least one additional service regarding the new connection request or service request is made available at the subscriber connection. The existing connection between the switch and the terminal is realized by a radio link, at least on the partial route to the subscriber line. The signaling takes place subscriber-side by an intelligent TK device associated with the subscriber line, which is connected to the at least one terminal and the signaling information that is transmitted from the switch, evaluates.

In particular, the already existing connection and the new connection are on the one hand a connection with circuit switching (in particular telephony) and on the other hand a connection with packet switching (in particular internet connection), for the integration of which at the subscriber connection according to the invention new services are made available.

An additional service request concerns, for example, the provision of a translation service for the already existing connection.

Preferably, the signaling takes place with the switch subscriber terminal side by a TK device associated with the subscriber line, which is connected to the terminals present on the subscriber line and represents an intelligent service unit for communication with the switch of the selected communication network.

By means of a communication or signaling on an already existing connection between the subscriber line and a switch of the selected communications network, the invention makes it possible to provide additional telecommunications services at the subscriber line. The blocking busy state, which prevents the provision of services in the prior art in the presence of a connection on the subscriber line, is removed by the invention, in particular with regard to the integration of telephone network and Internet services. By selecting (preselection or on a call-by-call basis) the communication network via which incoming or outgoing connections are routed, a user can select a service provider who makes the desired services available at the subscriber line.

In a preferred embodiment of the invention additional services are provided at a called subscriber line. This embodiment of the invention is initially distinguished by a communication structure in which a user preselects via which communication network connection requests directed to him are completed. The selected communication network is possibly interconnected with other communication networks of other providers of telecommunications services. All telecommunication connections directed to a specific subscriber connection thus run via the same communication network and in particular via a specific switch of this network, which then completes the connections to the called subscriber connection.

Based on this communication structure, the terminating switch of the preselected communication network and a subscriber line TK device, which is also referred to below as the iSA (intelligent service agent), cooperate to provide additional services at the called subscriber line connection. For this purpose, an incoming further connection request of the TK device of the subscriber line is signaled via the already existing connection or the associated switched-through user channel, the TK device communicates the connection request to a user and is in response to control commands of the user or preprogrammed control commands a new connection to second TK device in conjunction with the switch made or rejected.

By merging all of a subscriber line related connections to a particular switch of a preselektierten communication network and by providing a smart telecommunications device on the subscriber line, which interacts with the completing switch, it is possible to provide additional services to a called telecommunication user. The completing switch knows and has access to all connections of a considered subscriber line.

In a preferred embodiment, at least two terminals are provided at the subscriber line, wherein the first terminal is a computer, which is dialed in via the switch in a packet switching network, in particular the Internet. In short, the initial situation is that a user of the computer "surfs" the Internet. The new connection request relates to a telephone call or a fax transmission.

The TK device notifies the user of an incoming further connection request. For this purpose, the TC device advantageously generates an acoustic, optical or audiovisual signal, such as a pop-up message on the screen of the computer, which informs the user of the computer that there is a connection request to the second TC device.

The user can now enter a control command in which he informs that the new connection request should be rejected, alternatively the computer connection should be terminated and the connection to the called second TK device should be established, alternatively he should use part of his bandwidth to establish a connection to the second TK device in parallel to the Internet session provides, or alternatively the telephone call by voice-over-IP technology or similar techniques should be given to the computer. It can also be provided that a specific reaction is not queried by the user, but is already preprogrammed in the TC device.

Depending on the user's control commands or corresponding preprogrammed control commands, the telecommunications facility then initiates one of the following operations.

In a first alternative, the switch and / or the computer is signaled to disconnect or interrupt the connection between the switch and the computer and establish a connection between the switch and the second terminal to the new connection request via the subscriber line or channel switched thereon turn on. Since both the previous connection and the new connection are completed via the switch of the preselected communication network, the completing switch can trigger or execute the corresponding operations.

In its second alternative, the TK device signals the switch and / or the computer to reduce the data transfer rate of the connection between the switch and the computer, to multiplex the data of the previous connection with the data of the new connection on the channel used and in addition to the existing one Connection between the switch and the computer to establish a connection between the switch and the second terminal and switch through. The existing traffic channel between computer and switch is thus used by multiplexing for both connections. In the case of analog voice signals, these are to be converted into a digital voice signal before multiplexing, which is preferably additionally compressed to reduce the bandwidth.

This variant has the beneficial effect of reducing the cost of terminating the connection since two connections are now completed over a single data channel. Thus, it is possible for the operator of the preselektierten telecommunications network to offer the termination of a telecommunications connection at discounted conditions. Completes the completion of a switch TK connection, for example, via the access network of the former monopolist, in Germany, the German Telekom AG, so he has to pay this for a certain fee, in Germany at the time of 1.97 Pfennig. If he now completes a second telecommunications connection over the same traffic channel, he still has to pay the incurred termination costs (of 1,97 Pf / min) only once to the former monopolist. The cost savings is obvious.

In a third alternative, the TK device signals the switch to ignore the new connection request and to notify the calling terminal of the busy state.

In a fourth alternative, the telephone call is placed on the computer via voice-over-IP technology and the new telephone connection to the computer is completed. In the case of an incoming fax this is converted by the switch into an e-mail, transmitted to the computer and displayed on the screen of the computer and / or stored in a storage medium of the computer. The previous Internet connection is thereby preferably maintained in parallel with multiplexing of the respective data or alternatively aborted and automatically re-established after completion of the telephone call or fax transmission.

In another embodiment of the invention, at least two phones are available at the subscriber line. In the case of an incoming further connection request, the TK device signals the switch to multiplex the data of the previous connection with the data of the new connection on the subscriber line and to complete the new connection to the second telephone in addition to the existing connection to the first telephone. In the preferred case of an analog subscriber line, the two telephone calls for this purpose are multiplexed on a modem connection to be established between the switch and the TK device.

In one embodiment of the invention, the telecommunication device has means for recognizing a specific code and signals the telecommunication device in the event that the signaling information transmitted by the switch contains this code, the switch and / or the first terminal, the connection between the switch and the first terminal immediately disconnect or interrupt and then complete the new connection, ie produce and connect to the terminal.

It is a service that effectively carries out an emergency call function. Certain calls that are distinguished by a predetermined code, in principle dominate over another connection, in particular a computer or Internet connection, so that the latter is interrupted or completely terminated and the incoming call is put through to the called TK device. The code is, for example, certain telephone numbers of a calling subscriber line. This variant of the invention ensures that certain persons, such as family, close friends, important career partners, etc., also receive a free line during a "surfing" of the user at the subscriber line on the Internet or during a permanent call, so that the call can be put through. A corresponding method can also be used for outgoing calls.

Description of several embodiments

The invention will be explained in more detail with reference to the figures of the drawing with reference to several embodiments. Show it:

1 A communication structure according to the invention with two interconnected telecommunication networks;

2 A communication structure according to the invention with a plurality of interconnected telecommunication networks;

3 The temporal execution of a procedure for the provision of new services at a called subscriber line,

4 The temporal execution of a procedure for the provision of new services at a calling subscriber line, and

5 - The time course of a procedure for the provision of new services at a calling or called subscriber line.

1 shows a communication structure with two communication networks 3 . 4 which are interconnected via Interconnect Points POI (Points of Interconnect). An interconnection between the communication networks is usually provided by per se known interconnect connections (not shown), which interconnect 2 Mbit / s lines (E1 groups) of the networks and realize a gateway.

To a subscriber line 5 are several TK terminals, in the present case a personal computer (PC) 51 and a telephone 52 connected. The subscriber line 5 is also a telecommunications device 53 assigned between a network termination NT of the subscriber line and the terminals 51 . 52 is set. The TK device is an intelligent service agent (iSA). The telecommunications equipment 53 has a microprocessor with the usual peripheral devices such as RAM and ROM block. The functions to be performed are called software 13 realized on the microprocessor.

The devices of the subscriber line 5 are via the network termination NT and a local loop to the local local exchange 41 of the communication network 4 connected, that the final access to the subscriber line 5 provides (Last Mile). In Germany, this is the local network of Deutsche Telekom AG. An analogue user channel for signal transmission is available on the subscriber line in the case of analogue connections. In a digital connection, depending on the type of connection, several user channels are also available, for example two B channels in the case of an ISDN basic connection.

To the net 4 Further subscriber connections are connected. It also shows the local local agency 42 connected connection 6 with a PC 61 , a telephone 62 and a telecommunications device 63 , The structure is identical to the structure of the subscriber line 5 ,

A connection from the terminal 6 as a calling connection to the connection 5 as a called connection is first on the subscriber line to the local exchange or the switch 42 of the network 4 directed. It is assumed that the user of the connection 4 a particular communication network by preselection or on a call-by-call basis has been selected to transmit the connection, in this case the network 3 an alternative provider of telecommunications services. Accordingly, at an interconnect point POI, a transition to the network occurs 3 instead of.

The connection is now over in the alternative network 3 arranged switches, of which switches 31 . 32 are shown, as far as possible in the direction of the called connection 5 routed. At the switch 32 To complete the connection, a transition back to the network takes place 1 Having access to the subscriber line of the terminal 5 has. The switch 32 is the switch that completes the connection for the caller, where the switch 32 for the completion of the network 4 and the switch 41 served. Likewise, a could Completion to the connection 5 via a radio link or a separate data line or subscriber line.

2 shows a communication structure with multiple communication networks 1 . 2 . 3 . 4 , which are interconnected via interconnect points POI (Points of Interconnect). Opposite the 1 are the nets 1 and 2 to fore. Also to the other networks 1 . 2 are terminal equipment 6 as computer, telephone or fax connected, represented schematically by telephones, which in turn either over the local network of the monopolist (in the example shown the net 4 ) or directly with exchanges or switches 11 . 21 . 31 the respective networks are connected. The switches 11 . 21 . 31 forward the incoming or outgoing connections and switch them on.

The illustrated communication structure is characterized in that the user of the subscriber line 5 a specific network, in the illustrated example the network 3 , has preselected to complete all incoming connections to him. The incoming connections are made by the subscriber line 5 associated completing switch 32 completed. By interconnecting the different networks 1 . 2 . 3 . 4 It is possible that regardless of which communication network 1 . 2 . 3 . 4 a connection request has initially gone out, the corresponding connection to the called subscriber line 5 always over the net 3 and the subscriber line 5 assigned switch 32 is routed.

This preselection of the completing switch on the called subscriber line is effected, for example, in that for each subscriber line an assignment to a preselected communication network is entered in a database, which is the individual switches 11 . 21 . 31 . 41 the interconnected communication networks is available, for example, within the framework of an intelligent network. To complete a connection, the switches in the database look for the network over which connections to a certain connection are to be completed and initiate routing to the corresponding communication network. In the pre-selected communication network, in turn, each subscriber line is assigned a specific switch, via which the connections to the subscriber line are completed, and incoming connections to this switch are routed.

The termination of a connection through the switch 32 of the network 3 can, as already mentioned, be done in various ways. In general, the termination will take place via the local local exchange network of the former monopolist, ie via the local exchange 41 of the communication network 4 , In Germany, the operator of the network 3 to the operator of the network 4 to pay a certain completion fee, which is currently 1.97 pf. However, it is alternatively possible that the completing switch 32 a completion of a call or a connection to the subscriber line 5 via a private access network or via a radio link, such as a DECT connection to the subscriber line 5 manufactures. Any end-access techniques can be used.

The telecommunications equipment 53 or their functionality may alternatively not run as a standalone device, but in one of the terminals 51 . 52 be integrated. The then required communication between the terminals 51 . 52 , respectively. 61 . 62 when connecting 6 of the 1 , takes place locally at the subscriber line, approximately according to the in the DE 195 31 948 C1 described method.

It is noted at this point that it is the subscriber line 5 or the subscriber line 6 can be both an analog and a digital, in particular ISDN connection. Accordingly, the network termination NT is an analog or a digital network termination. The inventive communication structure and the inventive method are in no way limited to digital subscriber lines. Rather, the special advantage of the method according to the invention, which will be described below with reference to FIGS 3 to 5 is explained by way of example.

3 starts from the initial situation that the PC 51 over the switch 32 of the network 3 , which in the present example is also preselected for outgoing calls, and has also dialed in an entry point POP (Point of Presence) of an Internet service provider into the Internet, in which he "surfs". Between switch 32 and computer 51 For this purpose, a connection is switched through, on which data in IP format is transmitted in both directions. A packet switching takes place only in the packet switching network (Internet) itself, but not on the access route to the subscriber line 5 ,

Thus, the subscriber line to the subscriber line 5 occupied with a traffic channel. If it is the connection 5 is an analog connection, the data is transmitted over a modem connection. Another connection to the subscriber line can not be established according to the prior art. The connection is busy. In the case of a digital subscriber line 5 the data is about a digital data channel, in particular an ISDN B-channel. Another connection can be made according to the prior art only if another B-channel of the ISDN line is free.

A new connection request to the subscriber line 5 becomes due to the explained communication structure via the switch 32 routed. The switch 32 detects that already has a connection to the subscriber line 5 exists and signals the TK device 53 the newly received connection request.

For this purpose, two alternative methods are provided. In the first case, the signaling information relating to the presence of a new connection request is transmitted by multiplexing with the data of the already switched-through user channel, in particular in the context of in-band signaling, for example by means of DTMF signals. If it is the connection 5 is an ISDN connection, instead of an in-band signaling also an out-band signaling via the D-channel can take place.

Alternatively, the transmission of signaling information from the switch 32 to the computer 51 via the subscriber line or the switched-through useful channel for a certain period of time from the switch 32 interrupted, and it is in this period, the additional information about the traffic channel to the telecommunications facility 53 which then evaluates the information.

After the telecommunications facility 53 has received the information concerning the further connection request, it shares this information with the user of the PC 51 With. This can be done by an audible, visual or audiovisual signal, such as a pop-up message on the screen of the computer, which is communicated to the user of the computer that a connection request to another terminal, in the example shown the phone 52 is present. Preferably, the user is also the phone number of the calling call as well as this in the PC possibly present additional information such as name, etc. communicated. This additional information can be added to the signaling or stored in a memory of the PC or the telecommunications device.

The user of the PC 51 Now gives his PC a specific control command by pressing appropriate keys on the keyboard, with which he the TK device 53 tells you how to handle the incoming connection request. Depending on the control commands of the user of the PC 51 generates the TK device 53 Control commands to the switch 32 which then triggers one of the following operations.

It should be noted that a certain reaction to the new connection request in the telecommunications facility 53 can also be preprogrammed. For example, can be preprogrammed that connections to the phone 52 Connections of the PC 51 always proceed so that then dismantled the connection to the PC and the new connection to the phone 52 would be built.

This feature can be refined in that the TK device 53 Having means for detecting a particular code and in the event that the signaling information transmitted by the switch containing this code, immediately triggers a specific reaction, such as the interruption of the connection between the switch and computer 51 and building a new connection between the switch and the phone 52 , For example, the code is specific phone numbers that are in the telecommunications facility 5 are stored. This can ensure that certain callers even with an occupancy of the subscriber line 5 due to the PC usage to the phone 52 be switched through.

Now for the further procedure. In a first variant a) the user of the PC has 51 a control signal to the TK device 53 to the effect that the new connection request should be ignored. The switch 32 then only informs the calling terminal that the subscriber line 5 is busy. The connection of the computer 51 with the switch 32 or the Internet is retained.

In a second variant b), the user of the PC's TK device has given a control command to this effect or was such a control command in the telecommunications device already preprogrammed or such a control command was triggered due to a specific code of the signaling information of the switch that the old connection disconnected and the new connection should be established and switched through. In the presence of appropriate signaling information from the telecommunications device 53 disconnects or interrupts the switch 32 Accordingly, the connection of the computer to the Internet and signals the new connection request the phone 52 and turns on this connection when recording the handset of the phone 52 to this through. With only a break in the connection between the switch 32 and PC 51 the connection is reestablished when the telephone conversation is over.

This new service of extended call waiting or call switching is only through the described interaction between Switch 32 and telecommunications facility 53 possible. So far, an occupancy of the subscriber line due to a Connecting the computer to a computer network only to a busy character at the caller.

In a third alternative c), the user of the PC is due to the request a control command to that effect, or is such a control command preprogrammed in the TK device or such a control command is triggered due to a specific code of the signaling information of the switch that the bandwidth of Data transfer between switch 32 and computer 51 reduced and an additional connection parallel to the existing connection via the already switched through the user channel to the phone 52 to be set up and switched through.

Accordingly, the switch multiplexes 32 the data of the previous connection with the data of the new connection to the phone 52 on the through-connected traffic channel. For this purpose, a data compression is usually also carried out in order to keep the bandwidth of the two interconnected connections as large as possible. The TK device demultiplexes the multiplexed data of the two links and forwards them to the computer according to their destination 51 and the phone 52 further. At the same time, if necessary, a demodulation takes place. In the other direction of connection, the TK device multiplexes and compresses 53 the data of the PC and the phone and there is a demultiplexing and decompression by the switch 32 ,

In a fourth alternative (d), the user of the PC issues a control command based on the request, or such a control command is preprogrammed in the TC device that the telephone call is via voice-over-IP technology (VoIP) or comparable techniques such as voice over ATM (VoATM) to the computer ( 51 ) and the new telephone connection to the computer ( 51 ) is completed. The user is then communicated with the call on the computer screen. Also, a digital / analog conversion of the voice signal can be made, wherein the call is communicated via a computer speaker. The same applies to the other direction of transmission. Voice-over-IP transmission of the data preferably takes place in accordance with ITU-T Recommendation H.323.

In the case of an incoming fax, it may be provided to convert the fax from the switch into an e-mail, to transfer it to the computer and to display it on the screen of the computer and / or to store it in a storage medium of the computer.

4 relates to the provision of new services to the calling end user and starts from the initial situation that the PC 61 of the connection 6 (see. 1 ) over the switch 31 of the preselected network 3 and a Einwählpunkt POP has dialed into the Internet, in which he "surfs". Between PC 61 and switch 31 For this purpose, a connection is switched through, on which data in IP format is transmitted in both directions.

Another connection request goes from the phone 62 out. Due to the existing Internet connection is according to the prior art, a further telephone connection at an analog connection 6 not possible or with an ISDN basic connection 6 only possible if not both B-channels are occupied. This situation is unsatisfactory, since due to the Internet connection no telephone call can be made.

The outgoing connection request is the TK device 63 notified by a corresponding control command of a user or a standard, automatically emitted by the phone about when picking up the receiver signaling protocol element. The latter is, for example, an ISDN SETUP protocol data element. The telecommunications equipment 63 recognizes the connection request and signals the connection request to the switch 31 , As a result, several scenarios are possible:
In a first alternative a) the TK device signals the switch and the computer to disconnect or disconnect the switch between the computer and the computer and to release the subscriber line for the new connection, whereupon the new connection concerning the telephone is established over the same channel is switched through. After completion of the telephone connection, the Internet connection of the PC 61 prefers automatically restored.

In a second alternative b) is in addition to the existing connection of the PC 61 the new telephone connection is established and from the switch 31 switched through, the TK device 63 the data of the previous connection is multiplexed with the signaling and payload data of the new connection, and the switch 31 demultiplexing and splitting the data onto the respective links. The voice data of the phone 62 are thereby digitized in an analog connection and compressed to reduce the bandwidth. The connection between telecommunications equipment 63 and switch 31 is a modem connection via the analog subscriber line in the case of an analogue connection. It should be noted, however, that the multiplexed modem connection is from the local exchange 42 digitally and the switch 31 is passed on.

It should also be noted that the user of course also the network 4 Preselektieren, so that the connection alone in the network 4 is conducted without an interconnection with the network of an alternative provider of telecommunications connections.

5 concerns new services that can be made equally available to the calling and called end user. The starting point this time is the situation that the subscriber line 5 . 6 a first connection concerning a first telephone 1 is present. It now lies on a second telephone 2 of the same subscriber line 6 Another connection request before (variant a)) or it is another connection request at the subscriber line 5 a (variant b). In the first variant, the telecommunications facility shares 63 the signaling request to the switch 31 With. In the second variant of the connection request is the phone 2 from the TK device 53 communicated. The corresponding signaling information is the TK device from the switch 32 communicated on the existing connection to the telephone 1, such as by multiplexing the signaling information with the payload of the switched connection.

If the telephone 2 accepts the incoming connection and the handset is removed, or after signaling the call acceptance readiness of the called party in the outgoing call, the data of the two connections are multiplexed on the subscriber line. In the case of an analog subscriber line 5 . 6 build the switch 32 . 31 and the TK facility 53 . 63 a modem connection and the respective voice signals are digitized, compressed and transmitted via the modem connection.

In this case, the TK device demultiplexes incoming data of the two connections and forwards them according to their destination to the two telephones 1, 2 or multiplexes them outgoing data and forwards them to the switch.

The TK device and the switch have means for multiplexing or demultiplexing the signals of the connections or associated signaling information on or a channel of the subscriber line. The signals to be transmitted of the two connections on the switch and the subscriber line thereby receive a format that allows to multiplex the data of both connections via a user channel of the subscriber line. In this case, signals are digitized, which are still available as analog signals, and transmitted as digital data, in particular as IP packets on the subscriber line.

The described methods make it possible to provide new services at an analogue or digital subscriber line, in particular providing services for the integration of telephony and Internet services.

Claims (26)

Method for providing additional services at a subscriber line ( 5 ) in a communication structure comprising a plurality of interconnected communication networks ( 1 . 2 . 3 . 4 ), wherein at least one terminal is connected to the subscriber line and the subscriber line is directly or indirectly connected to a switch of a preselected by a user with respect to incoming connection requests communication network, wherein a) starting from an already existing connection between the switch ( 32 . 31 ) and the terminal ( 51 . 52 ; 61 . 62 ) b) for an incoming further connection request or service request signaling between the switch ( 32 . 31 ) and the subscriber line ( 5 . 6 ) via the already existing connection and c) at least one additional service regarding the new connection request or service request at the subscriber connection ( 5 . 6 ), where d) the existing connection between the switch ( 32 . 31 ) and the terminal ( 51 . 52 ; 61 . 62 ) at least on the leg to the subscriber line ( 5 . 6 ) is realized by a radio link, and wherein e) the subscriber line side signaling by a subscriber line associated with the intelligent TK device ( 53 . 63 ), which is connected to the at least one terminal and evaluates the signaling information transmitted by the switch. Method according to claim 1, characterized in that an additional connection between the switch ( 32 . 31 ) and another terminal ( 51 . 52 ; 61 . 62 ), which is also connected to the local loop ( 5 . 6 ) is connected, is realized by multiplexing the additional connection with the existing connections or interruption or interruption of the previous connection via the radio link. Method according to claim 1 or 2, characterized in that to the called subscriber line ( 5 ) directed connections over the preselected communication network ( 3 ) and in the preselected communication network ( 3 ) always via the switch assigned to the subscriber line ( 32 ) are routed. Method according to one of the preceding claims, characterized in that an assignment to a preselected network is entered into a database for each subscriber line. A method according to claim 4, characterized in that the database the individual switches ( 11 . 21 . 31 . 41 ) interconnected communication networks ( 1 . 2 . 3 . 4 ) is available under an intelligent network. Method according to claim 5, characterized in that to complete a connection, the switches ( 11 . 21 . 31 . 41 ) in the database, over which communication networks ( 1 . 2 . 3 . 4 ) a connection to a specific subscriber line ( 5 . 6 ) and a routing to the corresponding communication network ( 1 . 2 . 3 . 4 ). Method according to one of claims 4 to 6, characterized in that the database allocations between subscriber lines ( 5 . 6 ) and preselected communication networks ( 1 . 2 . 3 . 4 ) indicating which communication network ( 1 . 2 . 3 . 4 ) to a subscriber line ( 5 . 6 ) directed compounds are to complete. Method according to claim 1 for providing additional services at a called subscriber line, wherein the called subscriber line ( 5 ) directed connections over the switch associated with the subscriber line ( 32 ) of the called by the called party communication network ( 3 ), which can be combined with other communication networks ( 1 . 2 . 4 ), characterized in that a) an incoming further connection request to the subscriber line ( 5 ) is signaled via the already existing connection and b) the connection request is communicated to a user and the new connection is established or rejected in dependence on control commands of the user or preprogrammed control commands. Method according to Claim 8, characterized in that the TC device ( 53 ) or the terminal generates an audible, visual or audiovisual signal, such as a pop-up message on a computer screen, a voice message or an indication on the display of a telephone, which informs the user of the terminal that there is another connection request , A method according to claim 9, characterized in that the acoustic, optical or audiovisual signal has additional information about the new connection request, which are attached to the incoming connection or stored in a memory of the terminal or the TK device, in particular additional information concerning the caller. Method according to one of Claims 8 to 10, in which at least two terminals are provided at the subscriber line and the first terminal is a computer ( 51 ), which is connected via the switch to a packet-switched network, in particular the Internet, and the new connection request relates to a telephone call or a fax transmission, characterized in that the telecommunications device ( 53 ) performs one of the following actions in response to appropriate user control commands or pre-programmed control commands: a) the switch ( 32 ) and / or the computer ( 51 ) signals disconnecting or disconnecting the switch from the computer and the switch ( 32 ) signals to the new connection request via the same traffic channel a connection to the second terminal ( 52 ) or b) the switch ( 32 ) signals to multiplex the data of the previous connection with the data of the new connection and in addition to the existing connection between the switch ( 32 ) and the computer ( 51 ) a connection between the switch ( 32 ) and the second terminal ( 52 ) or c) the switch ( 32 ) signals to reject the new connection request and inform the calling terminal the busy state. Method according to Claim 11, characterized in that in the case of an interruption of the previous connection of the computer ( 51 ) after completion of the new connection, the previous connection is restored. Method according to at least one of Claims 9 to 10, in which the terminal is a computer ( 51 ), which is dialed in via the switch into a packet-switched network, in particular the Internet, and the new connection request relates to a telephone call, characterized in that the telephone call is made by voice-over-IP technology to the computer ( 51 ) and the new telephone connection to the computer ( 51 ) is completed. Method according to at least one of Claims 8 to 10, in which the terminal is a computer ( 51 ), which is dialed in via the switch into a packet-switched network, in particular the Internet, and the new connection request relates to a fax transmission, characterized in that the fax from the switch ( 32 ) into an e-mail, to the computer ( 51 ) and displayed on the screen of the computer and / or stored in a storage medium of the computer. Method according to Claim 13 or 14, characterized in that the previous connection to the packet-switched network is maintained or terminated in parallel with multiplexing of the respective data, and after termination of the telephone conversation or the fax transmission is automatically restored. Method according to one of Claims 8 to 10, in which at least two terminals are provided at the subscriber line and both terminals are telephones, characterized in that the TC system ( 53 ) signals the switch to multiplex the data of the previous connection with the data of the new connection on the subscriber line and to complete the new connection to the second telephone in addition to the existing connection to the first telephone. Method according to one of Claims 8 to 16, characterized in that, in the case of a multiplexing of data, additionally data compression is carried out. Method according to one of Claims 8 to 17, characterized in that in the case of multiplexing the TK device ( 53 ) demultiplexes the multiplexed data of the two links and sends the data to the two terminals according to their destination ( 51 . 52 ) or multiplexes the data in the other connection direction and sends it to the switch ( 32 ). Method according to one of Claims 8 to 18, characterized in that the TC device ( 53 ) Means for recognizing a particular code and in the event that the signaling information transmitted by the switch contains this code, the switch ( 32 ) and / or the first terminal signals to disconnect or interrupt the connection between the switch and the first terminal and then complete the new connection. Method according to one of the preceding claims, characterized in that signaling takes place between the switch and the subscriber connection by multiplexing the signaling information with the payload information transmitted on the traffic channel of the existing connection. Method according to one of Claims 1 to 19, characterized in that signaling takes place between the switch and the subscriber connection, in that a transmission of the payload information over the traffic channel of the existing connection is interrupted for a specific period of time, and the signaling information is transmitted in this time period. Method according to one of the preceding claims, characterized in that a signaling between the switch ( 32 . 31 ) and the local loop ( 5 . 6 ) as inband or outband signaling. Method according to one of Claims 1 to 22, characterized in that the TK device is plugged into one of the terminals of the TK connection ( 5 . 6 ) is integrated. Method according to one of the preceding claims, in which the first connection concerns a connection with circuit switching and the second connection a connection with packet switching, or vice versa, characterized in that the signals to be transmitted of the two connections at the switch and at the subscriber connection obtain a format which allows to multiplex the data of both links over a payload channel of the subscriber line. Method according to Claim 24, characterized in that the signals are digitized if they are still analog signals and transmitted as digital data, in particular as IP packets, on the subscriber line. A method according to claim 25, wherein the subscriber terminal is a digital terminal, characterized in that the data is transmitted as digital data on the radio link.

Images