Method and device for incorporating advertising into videotelephone communications

A video telephony system for video and voice communication, said video telephony system comprising

• a H.320 terminal for video telephony of a caller and a H.320 terminal for video telephony of a called subscriber;
• means for controlling transmission of regular video information and voice information between said H.320 terminals of said caller and said called subscriber during a video telephone call in at least one H.320 server of a selected service provider;
• a timer comprising means for measuring or timing a predetermined time period;
• means for requesting the caller to carry out an interactive action in said H.320 server;
• means for interrogating to determine if said interactive action has been performed during said predetermined time period as measured by said timer;
• and
• means for transmitting additional video information to the H.320 terminal of the caller from the H.320 server and displaying said additional video information on the said H.320 terminal of the caller, if and only if said interactive action has been performed by the caller during said predetermined time period.