DE19843307A1 - Automatic changing of switched communications paths involves using a device wishing to take over existing connection setting signal sequence variables - Google Patents

Abstract

The method involves a first telecommunications device (2) wishing to take over an existing connection between second (3) and third (4) devices over a switched network (1) forming the variables of its signal sequence for setting up a connection to the third device so that it detects the wish to take over the connection. The third device stores the signal sequence(s) for further connection establishment(s) and checks the variables. If the variables contain defined characters the third device automatically switches over to the new connection with the first device and releases the old connection to the second device.

Description

The invention relates to a method with which it is to be made possible that a telecommunication device 4 automatically accepts another incoming connection from a telecommunication device 2 in the case of an existing connection to another telecommunication device 3 and automatically switches the application to this connection. Only certain incoming connections should be considered.

The invention can also be used to reverse the connection Direction of construction of an existing or under construction First connection can be used. This allows, for example wise implement a fee.

The method according to the invention is to be implemented with the aid of conventional telecommunication systems 1 .

Examples of telecommunication systems

• 1. The ISDN system from Deutsche Telekom AG.
• 2. PBX (also called private branch exchange) with comparable technical equipment.

The following devices are telecommunication devices (terminals) in accordance with the invention:

• 1. Phones. . .
• 2. Terminal adapter
• 3. PBXs / private branch exchanges (sub-systems, subsystems)
• 4. Cordless telecommunications systems
• 5. Central facilities of the radio cells of mobile telephone systems
• 6. Least Coast Router

According to the state of the art, a calling device receives that dials a busy terminal, a busy signal. Then the connection is released. It is also conceivable a so-called knock. Here the user decides whether he is the existing connection in favor of the call waiting wants to trigger a bond.

The object of the invention is to develop a method wrap, automatically decided by the device whether an additional incoming connection is accepted. The identification of a connection to be taken over through the dialing devices.  

The invention is also intended to cover fees by reversing the connection setup direction during a Allow connection. By the invention Solution will even be a fee before a Paid connection possible.

The task is characterized by the characteristic features of the Claim 1 solved.

Advantageous embodiments are in the dependent claims specified.

All procedures have in common that an existing plant protocol, such as B. the EDSS1 of the ISDN unchanged Solution of the task can be used.

The technical solution is described below using a Example explained.

In the example, 3 small cordless telecommunications systems such as B. Sinus 44 ISDN of DTAG can be connected to the public ISDN network using the following numbers. The systems have the functions according to the invention.
Appendix A ( 4 ) in Fig. 1 to 06151 1122
Appendix B ( 2 ) in Fig. 1 to 03021 3344
Appendix C ( 3 ) in Fig. 1 to 03021 5566.

The MA1 handset is on system A under the number 06151 1122 directly accessible.

The systems B and C are arranged so that their Overlap radio areas. When changing the handset MC1 from system C to system B should enable a handover his. The solution according to the invention is based on this Handovers described.

Procedure 1

• 1. The MC1 handset is in the area of system C. It connects to system A (MA1 handset) with the number 06151 1122.
  The setup contains 03021 5566 as the calling ID.
  In order to signal system A now that the application (the telephone call) should possibly be switched to a subsequent incoming connection, the setup frame can be expanded / designed accordingly. The areas of subaddress and / or subscriber to subscriber signaling are particularly advantageous for the expansion. The characters in these areas are transmitted transparently to the remote site.

Examples of suitable extensions

• 1. 1.1 The calling ID is repeated.  
• 2. 1.2 A reference value (here 778899)
• 3. 1.3 Information for the switching process
• 4. 1.4 Any strings
  The main reason for all extensions is that the called system A must differentiate between further incoming connections, whether the application must be switched to this connection or whether, for example, busy signaling is required.
• 5. The incoming connection is queried by system A. Setup information (variable V, character Z) are stored in Appendix A.
• 6. 2.1 Calling ID
• 7. 2.2 Contents of the subaddress or subscriber areas Participant signaling.
• 8. 2.3 Further information.
• 9. Connection status
• 10. MC1 changes to system B. The individual processes at Transition to the radio area of Appendix B will not described in more detail. For the solution according to the invention it is important that a connection is made via Appendix B now is cheaper. The information V, Z should be on the Radio path from system C to B are transmitted.
• 11. Even while the connection exists via system C, system B now establishes a connection to system A. The connection is specially marked in the setup frame.
  A particularly simple option is to use the calling ID of the existing connection CA (03021 5566). System B would normally send its own calling ID (03031 3344) in the setup.
  If the first connection has been established by system A, system B can take over the calling ID (06151 1122) adopted from system C.
  Further signaling options are described under points 1.1 to 1.4.
• 12. The connection BA is established.
  System A receives the corresponding setup.
• 13. Appendix A must now differentiate whether it is a switch connection or any other ver bond. For this, the received setup is made rated.  
• 14. Appendix A determines that the calling ID is identical to that of the existing connection and evaluates this as a criterion for a switchover connection.
  Extended criteria for identifying an incoming switch connection:
• 15. 8.1 The calling ID of the existing connection is located in the area of the subaddress or in the area of the part Participant to participant signaling.
• 16. 8.2 In the area of the subaddress or in the area of the part Participant to participant signaling becomes a reference value (778899) of the existing connection found.
• 17. Query the connection.
• 18. The voice connection to MC1 is taken over by system B and switched to the connection provided to system A.
  Before the switchover, a short test report via the B channel is also conceivable.
• 19. Appendix A switches the call from MA1 to the new version binding A-B.
• 20. The connection A-C is released.

A comparable application of the invention is in a Payment of fees possible. The assumption of fees will by automatically reversing the connection direction.

Procedure 1

• 1. The MC1 handset is in the area of system C. It connects to system A (MA1 handset) with the number 06151 1122.
  The setup contains 03021 5566 as the calling ID.
• 2. The connection is queried.
• 3. State of conversation.
• 4. The user of the MA1 handset presses a key Assumption of fees.
• 5. MA1 / system A establishes a connection to MC1 / system C built up. The number to be dialed is here "Calling ID" of those with the "Setup" of the existing one Connection was transmitted by the exchange. The signaling for establishing a connection contains Indications for connection takeover, as above under Item 5 described transmitted.  
• 6. The rest of the procedure is comparable to procedure 1.
  Querying the return connection - switching the call to the return connection - triggering the first connection.

If necessary, a fee transfer / return is already binding before a fee-based initial connection possible.

The user of a phone already sees while the call phase, the caller's number on the display. He can already have a corresponding button to build the Press the return link to use the functions as under Trigger sequence 2.

Instead of triggering the transfer of charges / automatic reconnection via a button, a fully automatic process is also possible. There are 2 variants for this:

• 1. Assumption of charges for all incoming connections.
• 2. Assumption of fees for certain incoming connections. Here are the numbers (Calling ID) stored in the direction of telecommunications, through which a fee is to be accepted, when they are selected, a fee / return connection is to take place.
  The return connection is possible both after and before the fee-based connection.

The process of reconnection is triggered either through the incoming "setup" of the exchange or by a subsequent query of the connection.  

Reference list

1

Telecommunication system (ISDN network of Telekom or ISDN private branch exchange as example)

2nd

Appendix B

3rd

Appendix C

4th

Appendix A

5

Handset MC1 (cordless telephone of the basic system / system C)

6

MA1 handset (cordless base system telephone / system A)

Claims (6)

1. A method for automatically changing selected connection paths between telecommunication devices ,

• 1. that a telecommunication device ( 2 ) that wants to take over an existing connection between a telecommunication device ( 3 ) and a telecommunication device ( 4 ) via the dial-up network ( 1 ), the variables V of their character string (s) for establishing the connection to the telecommunication device ( 4 ), which transmits the dial-up network ( 1 ) when establishing a connection to the telecommunications device ( 4 ) in such a way that the takeover request is recognized by the telecommunications device ( 4 ),
• 2. that the telecommunication device ( 4 ) stores the received character strings for an incoming connection establishment of further incoming connections and checks the variables V,
• 3. that the telecommunications device ( 4 ) when variables V defined characters Z automatically switch the application to the new connection between the telecommunications device ( 4 ) and the telecommunications device ( 2 ) and the old connection between the telecommunications device ( 4 ) and the telecommunications device ( 3 ) triggers.

2. The method according to claim 1, characterized in that

• 1. that the variable V is the calling ID,
• 2. that the characters Z are the digits of the calling ID used by the telecommunications device ( 3 ) when establishing the connection to the telecommunications device ( 4 ),
• 3. that the telecommunications device ( 4 ) on the basis of the received identical calling Id, the application switches to the new connection.

3. The method according to claim 1, characterized in

• 1. that the variable V is the subaddress or the subscriber to subscriber signaling,
• 2. that the characters Z are the digits Calling ID, which the telecommunication device ( 3 ) used when establishing the connection to the Telekommunikationsein device ( 4 ),
• 3. that the telecommunications device ( 4 ) on the basis of the received identical calling Id, the application switches to the new connection.

4. The method according to claim 1, characterized in

• 1. that the variable V is the subaddress or the subscriber to subscriber signaling,
• 2. that the characters Z are any character string / a reference value that the telecommunications device ( 3 ) has used when establishing a connection to the Telekommunikationsein device ( 4 ) and
• 3. that the telecommunications device ( 4 ) switches over to the new connection on the basis of the received identical character string.

5. The method according to claim 1 to 4, characterized in

• - That the procedure for reversing the connection establishment direction and thus for paying fees is used and
• - That the calling ID received from the first connection is used to establish the return connection.

6. The method according to claim 1 to 5, characterized in

• 1. that the connection set-up of the return connection for the transfer of charges already takes place before the connection phase of the first connection, which is subject to fees, since the calling ID already exists.