METHOD AND SYSTEM FOR CHARACTERISING HETEROGENEOUS COMMUNICATION NODES

摘要

The method involves inserting an indicator, representative of type of address associated to a user agent (A) included in one of two heterogeneous nodes, in a contact field of a session initiation protocol (SIP) request message transmitted by the user agent. The indicator is a coded digital value representative of internet protocol version 4 (IPv4), internet protocol version 6 (IPv6) or IPv4 and IPv6 protocols designated as double stack. Independent claims are also included for the following: (1) a carrier signal of a request message comprising an indicator (2) a system for transmitting data between heterogeneous nodes (3) a computer program comprising program code instructions for implementing data transmitting method.