System and Method of Visual Communication Using Touch Screen

An apparatus comprising:

• an IP video door phone having an interactive display;
• a gesture file within a non-transient computer readable medium that stores a two-dimensional sequence of positions;
• a comparison processor that detects a moving contact caused by contact by a human user with the interactive display, that compares a sequence of positions made by the moving contact on the interactive display with the positions of the gesture file and that detects a match;
• and
• an alarm processor that transmits an alarm message upon detecting the match.

An apparatus comprising:

• a security system coupled to a central monitoring station;
• an IP video door phone of the security system, the IP video door phone having an interactive display;
• and
• a processor, the processor detects a moving contact established by a human user with the interactive display, compares a sequence of positions made by the moving contact on the interactive display with a predetermined sequence of positions in memory to detect a match;
• and
• wherein the security system receives notification of the match from the processor and transmits an alarm message to the central monitoring station.