Method and system for characterising heterogeneous communication nodes

Abstract

The invention relates to a method for the transmission of data between at least two heterogeneous nodes. Said method comprises at least one step for the insertion of an indicator representing at least one address allocated to a user agent (A) included in one of said nodes, into at least one message transmitted (RE(1 ), 1(1 )) by said user agent (A) before the establishment of a communication session between the nodes. The invention enables the rapid identification of the risk of incompatibility between the types of two user agents (A, B) to be brought into communication with each other, with a view to remedying such an incompatibility if necessary. The invention can be applied to the intercommunication of user agents using type IPv4, IPv6 or dual stack (DS) in an IP network.

Description

technical field The field of the invention is the field of telecommunications, more specifically the field of IP telephony. Background technique People are increasingly using Internet Protocol (IP) networks as a unified means of supporting a large number of services and applications. For many operators who have opted for the protocol, IP has assumed the role of a federator, enabling previously separate services to support each other. The IPv4 version of the Internet Protocol has been in use for several years. In order to meet the constraints imposed by such communication services, and more specifically, in order to accommodate the growth in address requirements, operators and network equipment manufacturers have joined forces to develop a new generation of communication protocols, called IPv6, which is now mature enough for The specification and analysis document definition of the development phase make it possible to envision an operational deployment in the operator's ...

AI Technical Summary

Problems solved by technology

- The proxy server PS cannot determine whether the user agent is of type IPv4, IPv6, or DS

The inventors have come to the conclusion through practice that, although a need has emerged from the above research, in the current state of the art, there is no simple way to enable a communication component in an IP communication network to identify the user agent associated with a given user agent. address type, which explains why most of the currently researched techniques for managing calls between heterogeneous nodes fall short and do not address the service requirements to enable heterogeneous calls