Patent ID: 8005024

Claim:
Method for establishing a video-conference between audio communication equipments (ACE 1 , ACE 2 ), each associated to a user and to a telephone number and connected to a telephone network (TN), and video communication equipments (VCE 1 , VCE 2 ), each associated to one of said users and to an IP address and each connected to a video equipment (VE 1 , VE 2 ) and to an Internet network (IN), characterized in that it comprises: a) using an audio communication equipment (ACE 1 ), associated to a calling user, to initiate a first call with at least another audio communication equipment (ACE 2 ), associated to a called user, b) routing said first call to a chosen exchange node (SSPN) of said telephone network (TN) so that it transmits a message comprising the telephone numbers of the audio communication equipments (ACE 1 , ACE 2 ) of said calling and called users, to a service node (SN) connected to said telephone network (TN) and to the Internet network (IN), c) authorizing said exchange node (SSPN) to establish said first call when said telephone numbers are stored in a memory (MY) of said service node (SN), in order to set up an audio communication between the audio communication equipments (ACE 1 , ACE 2 ) of said calling and called users, d) determining, if required, the addresses of the video communication equipments (VCE 1 , VCE 2 ) of said calling and called users which are associated in the memory (MY) of said service node (SN) to said telephone numbers in order to establish a video communication between said video communication equipments (VCE 1 , VCE 2 ), in parallel with said audio communication; wherein the establishment of said video communication is triggered by one of the video communication equipments (VCE 1 , VCE 2 ) of said calling and called users having established a first call, managed by said service node (SN), between the respective audio communication equipments (ACE 1 , ACE 2 ); wherein the establishment of said video communication is triggered by means of a user action on a dedicated key of the video communication equipment (VCE 1 , VCE 2 ).