Method for transmitting data in a telecommunications network and switch for implementing said method
DC CAFCFirst Claim
1. A method for transferring data from a first end terminal to a second end terminal using a first switch and a second switch, selectively by line-switching or packet switching, comprising:
- a) locating the first switch between the first end terminal and an access point of a packet-switching network, the first switch being part of a line-switching network or having access to a line-switching network;
b) establishing a connection via the first switch through the line-switching network from the first end terminal to the access point of the packet-switching network;
c) line-switching transferring of non-packetized data through said connection from the first end terminal to the access point of the packet-switching network;
d) packeting of the data into data packets and packet-switching transferring of the data packets through the packet-switching network from the access point to the second switch;
e) checking repeatedly whether a control signal exists for transferring to a line-switching connection to the second switch;
f) establishing the line-switching connection, during an existing transfer, through the line-switching network from the first switch to the second switch with a presence of the control signal, if the line-switching connection is not yet present; and
g) changing-over to a line-switching data transfer during the existing transfer and transferring data over the line-switching connection to the second switch and from the second switch to the second end terminal.
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Reexamination
Accused Products
Abstract
A method for transferring data from a first switch to a second switch selectively by line-switching or by packet-switching as well as to a switch for carrying out the method. Data packets are thereby first transferred packet-switched through a packet-switching network to the second switch. With the presence of a corresponding control signal a line-switching connection is estalished from the first switch to the second switch and the data are then transferred through this connection
Where applicable a renewed change over to a packet-switching transfer is carried out. A flexible packet-switching or line-switching data transfer linked with dynamic costs between the junctions of a telecommunications network is enabled.
57 Citations
38 Claims
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1. A method for transferring data from a first end terminal to a second end terminal using a first switch and a second switch, selectively by line-switching or packet switching, comprising:
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a) locating the first switch between the first end terminal and an access point of a packet-switching network, the first switch being part of a line-switching network or having access to a line-switching network;
b) establishing a connection via the first switch through the line-switching network from the first end terminal to the access point of the packet-switching network;
c) line-switching transferring of non-packetized data through said connection from the first end terminal to the access point of the packet-switching network;
d) packeting of the data into data packets and packet-switching transferring of the data packets through the packet-switching network from the access point to the second switch;
e) checking repeatedly whether a control signal exists for transferring to a line-switching connection to the second switch;
f) establishing the line-switching connection, during an existing transfer, through the line-switching network from the first switch to the second switch with a presence of the control signal, if the line-switching connection is not yet present; and
g) changing-over to a line-switching data transfer during the existing transfer and transferring data over the line-switching connection to the second switch and from the second switch to the second end terminal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method for transferring data from a first end terminal to a second end terminal, selectively by line-switching or packet switching, comprising:
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a) establishing a connection through a line-switching network from the first end terminal to an access point of a packet switching network;
b) line-switching transferring of non-packetized data through said connection from the first end terminal to the access point of the packet-switching network;
c) packeting of the data into data packets and packet-switching transferring of the data packets through the packet-switching network from the access point to the second end terminal;
d) checking repeatedly whether a control signal exists for transferring to a line-switching connection to the second end terminal;
e) establishing the line-switching connection, during an existing transfer, through the line-switching network from the first end terminal to the second end terminal with a presence of the control signal, if the line-switching connection is not yet present; and
f) changing-over to a line-switching data transfer during the existing transfer and transferring data over the line-switching connection to the second end terminal. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. Switching apparatus for routing a telephone call comprising non-packetized data from a first end terminal located at a user'"'"'s premises to a second end terminal located at another user'"'"'s premises, selectively by line switching or packet switching, the switching apparatus comprising:
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means for establishing a connection through a line-switching network to the second end terminal;
means for line-switching transferring data received from the first end terminal as non-packetized data over the line-switching network to the second end terminal;
means for establishing a connection through a packet-switching network to the second end terminal;
means for packet-switching transferring data received from the first end terminal as non-packetized data over the packet-switching network to the second end terminal; and
means responsive to a control signal for transferring to a line-switching transfer or a packet-switching transfer to the second end terminal;
said means responsive to a control signal changing-over to a line-switching data transfer or a packet-switching transfer during the existing transfer with the presence of said control signal. - View Dependent Claims (35, 36, 37, 38)
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Specification