Patent ID: 7362747
Filing Date: 2008-04-22
Classification: H04L,H04M

Abstract:
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.