The proprietary technology we used for sending the video images from the Video Surveillance Server to the client application (video stream), along with the motion detection and tracking algorithm, led to a variation of the frames per second rate, transmitted towards the mobile phone, considering the GPRS connexion's band width, optimizing, in this way, the data transfer. The data transfer's optimization ca also lead to obtaining a great report between the quality of the image and the display rate of the recorded video images.