US 8,175,083 B2Granted

Method for transmitting data in a telecommunications network and switch for implementing said method

AssigneeSigram Schindler Beteiligungsgesellschaft mbH

InventorsSigram Schindler, Andreas Illg, Karsten Ludtke, Frank Paetsch

Life of this patent

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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 established from the first switch to the second switch and the data are then transferred through this connection. Where applicable a renewed changeover 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.

Claims26

Dependent claims

Apparatus for routing data of a voice telephone call, comprising:

(a) an input device for receiving data of a voice telephone call from a first end terminal;
(b) an IP switch for forwarding data of said voice telephone call from said input device to a first network for packet-switched communication to a second end terminal, said first network being a connection-less, non-ISDN packet switching network;
(c) a line switch for forwarding data of said voice telephone call from said input device to a second network for line-switched communication to said second end terminal, said second network being independent of said first network;
and
(d) a control device for selectively routing said data of said voice telephone call from said input device to said IP switch or said line switch after receiving data corresponding to a dialed number of said second end terminal;
said control device being operable to
(i) route first data of said voice telephone call to said IP switch;
(ii) monitor the bandwidth of an existing transfer of said first data of said voice telephone call to said second end terminal;
(iii) generate a change-over control signal during said existing transfer of said first data of said telephone call when said monitored bandwidth understeps or exceeds a certain bandwidth;
(iv) change over the routing of said existing transfer from said IP switch to said line switch without interrupting said voice telephone call;
and
(v) route second data of said voice telephone call to said line switch as a result of said changing over of said routing.

9 more elements

Apparatus for routing data of a voice telephone call, comprising:

(a) an input device for receiving data of a voice telephone call from a first end terminal;
(b) an IP switch for forwarding data of said voice telephone call from said input device to a first network for packet-switched communication to a second end terminal, said first network being a connection-less, non-ISDN packet switching network;
(c) a line switch for forwarding data of said voice telephone call from said input device to a second network for line-switched communication to said second end terminal, said second network being independent of said first network;
and
(d) a control device for selectively routing said data of said voice telephone call from said input device to said IP switch or said line switch after receiving data corresponding to a dialed number of said second end terminal;
said control device being operable to
(i) route first data of said voice telephone call to said IP switch;
(ii) monitor an existing transfer of said first data of said voice telephone call to said second end terminal for a time delay when forwarding IP data packets from said first end terminal;
(iii) generate a change-over control signal during said existing transfer of said first data of said telephone call when said time delay is determined to exceed a predetermined value;
(iv) change over the routing of said existing transfer from said IP switch to said line switch without interrupting said voice telephone call;
and
(v) route second data of said voice telephone call to said line switch in response to said changing over of said routing.

9 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/099,726Filed 3 May 2011 · continuation
Priority: DE 196 42 0637 Oct 1996
Published: US 2011/0206041 A125 Aug 2011
Granted: 8 May 2012
Term ends: Not estimatedThe source records don’t support an estimate.

Classification23 codes

H04M 7/0057
Services and arrangements where telephone services are combined with data services: services where the data services network provides a telephone…
H04L 9/40
Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols: network security protocols
H04L 12/6418
Hybrid switching systems: hybrid transport
H04M 3/4228
Systems providing special services or facilities to subscribers: in networks

Family

PCT/DE97/02363Parent of this division · filed 7 Oct 1997
Application11/165,280Parent of this continuation · filed 22 Jun 2005
US 6,954,453 B1Parent of this division · filed 11 Oct 2005
Application11/456,549Parent of this continuation · filed 10 Jul 2006
US 7,145,902 B2Parent of this continuation · filed 5 Dec 2006
Application12/359,514Parent of this continuation · filed 26 Jan 2009
US 7,483,431 B2Parent of this continuation · filed 27 Jan 2009
US 2011/0206041 A1Pre-grant publication · published 25 Aug 2011
US 7,936,751 B2Parent of this continuation
Application09/147,970Parent of this division
Application11/165,280Parent of this division
US 2005/0243851 A1Published application
US 2006/0239256 A1Published application
US 2009/0129381 A1Published application
US 8,175,083 B2This patent

From the US filing history. Foreign family members aren’t listed.