Disclosed is a real-time communication method between two persons, one referred to as client located in a client space and the other referred to as advisor located in an advisor space, the method making available to the advisor, the images and the sound of the client requesting advice, instructions and indications regarding design, production, use, utilisation, repair, maintenance, consultation, localisation, destruction, disposal, localisation and elimination and guidance for one or more products located in or moving through a real physical space referred to as product space, and making available to the client the images and the sound of the advisor interacting with the images of the client space and/or the product space. Also disclosed is a device for implementing the above method.