Translation of identifiers of user installation terminal in a packet network
First Claim
1. A method of translating identifiers of terminals in a client telecommunication installation, said identifiers having a predetermined format in packets in transit through a packet transmission network, the method comprisingincluding said identifiers in said packets in transit through said packet transmission networkcausing said identifier of a terminal as a source address in a first network packet transmitted from the terminal through the client installation to be translated into a predetermined identifier of the installation having said format and included in a second network packet which is transmitted in the packet network to telephone service provider device andcausing a port number designating a voice call step involving the terminal and included in a transport packet encapsulated in the first network packet to be translated into a port number allocated dynamically to the terminal and included in a transport packet encapsulated in the second network packet in order to identify both said terminal and the call step involving the terminal in the provider device,and conversely, the identifier of the installation included as a destination address in a third network packet which is transmitted in the packet network from the provider device to the installation through the packet network and the port number included in a transport packet encapsulated in the third network packet to be translated respectively into the identifier of the terminal included in a fourth network packet transmitted to the terminal through the installation and the port number designating the voice call step and included in a transport packet encapsulated in the fourth network packet.
1 Assignment
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Accused Products
Abstract
To increase addressing capacity of terminals in a packet transmission network (RP) such as the Internet, the identifier (ITe) of a terminal (Te) having a predetermined format included in a network packet (PQ1) transmitted in a client installation (IC) is translated into a predetermined identifier (IPI) of the installation (IC) having said format and included in a network packet (PQ2) which is transmitted in the packet network (RP) to a telephone service provider server and into a port number (Pe1-Pe3) corresponding to the terminal identifier (ITe) and included in a transport packet encapsulated in the packet (PQ2) transmitted in the network, or vice versa. The port number can be allocated dynamically for steps during a call involving the terminal.
11 Citations
6 Claims
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1. A method of translating identifiers of terminals in a client telecommunication installation, said identifiers having a predetermined format in packets in transit through a packet transmission network, the method comprising
including said identifiers in said packets in transit through said packet transmission network causing said identifier of a terminal as a source address in a first network packet transmitted from the terminal through the client installation to be translated into a predetermined identifier of the installation having said format and included in a second network packet which is transmitted in the packet network to telephone service provider device and causing a port number designating a voice call step involving the terminal and included in a transport packet encapsulated in the first network packet to be translated into a port number allocated dynamically to the terminal and included in a transport packet encapsulated in the second network packet in order to identify both said terminal and the call step involving the terminal in the provider device, and conversely, the identifier of the installation included as a destination address in a third network packet which is transmitted in the packet network from the provider device to the installation through the packet network and the port number included in a transport packet encapsulated in the third network packet to be translated respectively into the identifier of the terminal included in a fourth network packet transmitted to the terminal through the installation and the port number designating the voice call step and included in a transport packet encapsulated in the fourth network packet.
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5. A device for translating identifiers of terminals in a client telecommunication installation, said identifiers being arranged to have a predetermined format and be included in packets in transit through a packet transmission network, the device comprising
a mapping table for matching said identifier of one of said terminals included in a network packet adapted to be transmitted in the installation to a dynamically allocated port number adapted to be included in a transport packet encapsulated in a network packet adapted to be transmitted in the packet network, a controller arrangement for: - (a) replacing the identifier of the terminal included as a source address in a first network packet adapted to be transmitted by the terminal through the installation by a predetermined identifier of the installation having said format and included in a second network packet which is adapted to be transmitted in the packet network to a telephone service provider device and for replacing a port number designating a voice call step involving the terminal and included in a transport packet encapsulated in said first network packet by a port number allocated dynamically to the terminal and included in a transport packet adapted to be encapsulated in the second network packet, in order to identify both said terminal and the call step involving the terminal in the provider device, and (b) replacing the identifier of the installation adapted to be included as a destination address in a third network packet which is adapted to be transmitted in the packet network from the provider device to the installation through the packet network and the port number adapted to be included in a transport packet encapsulated in the third network packet respectively by the identifier of the terminal included in a fourth network packet transmitted to the terminal through the installation and the port number adapted to designate the voice call step and adapted to be included in a transport packet encapsulated in the fourth network packet.
- View Dependent Claims (6)
Specification