Patent ID: 7683924
Filing Date: 2010-03-23
Classification: H04M,H04N

Abstract:
1. A system for providing a service identifying a visitor and communicating a visitor, comprising: a door phone interface and application processing means connected to a video door phone device for processing a bell signal event, setting and releasing of a session connection, and processing voice/video data; a terminal recognizing means for determining whether a resident is home or not by detecting a location of a resident's wireless communication terminal when a bell activation event is occurred; a location information managing means for storing and managing contact addresses of visitor identifying and communicating terminals; a visitor identifying and communicating proxy means for requesting a session connection to one of the visitor identifying and communicating terminals, selected by the resident, based on the contact addresses according to the detected location of the resident by the terminal recognizing means when the bell activation event is occurred, exchanging voice and image of the visitor and voice of the resident between the video door phone device and the selected terminal through a session channel connected by the resident's allowance of the session connection request, and releasing the session by a request of the selected terminal; wherein each of the visitor identifying and communicating terminals includes: a visitor communication terminal application controller for registering and updating location information of a terminal, transmitting and receiving a session initiation protocol (SIP) message, and processing a real-time transport protocol (RTP) packet; a user interface processor for sensing and processing an event inputted from a user and interacting with the visitor communication terminal application controller; and a multimedia interface processor for encoding voice data inputted from a microphone, decoding received visitor's voice/image data, and outputting the decoded voice/image data.