Patent ID: 8000316

Claim:
An IP telephone system comprising: calling and called IP telephone apparatuses; a network camera comprising a camera and a Web server, the camera periodically capturing still image data of a user of the called IP telephone apparatus, the Web server storing the captured still image data in association with a predetermined URL (Uniform Resource Locator), and periodically updating the captured still image data; and an ENUM (Telephone Number Mapping) server that stores a NAPTR (Naming Authority Pointer) resource record, the NAPTR resource record including a URI (Uniform Resource Identifier) corresponding to an ENUM domain name, the URI being associated with the predetermined URL of the Web server, the calling IP telephone apparatus comprising: a key pad configured to input a telephone number of the called IP telephone apparatus; a display configured to display data; and a controller configured to: establish a connection for voice communication with the called IP telephone apparatus based on the input telephone number; generate an ENUM domain name based on the input telephone number of the called IP telephone apparatus; transmit, to the ENUM server, a request for transmitting, to the calling IP telephone apparatus, the NAPTR resource record corresponding to the generated ENUM domain name, after establishing the connection for voice communication; receive, from the ENUM server, the corresponding NAPTR resource record, in response to the transmitted request; access the Web server, based on the predetermined URL associated with the URI included in the received NAPTR resource record, after establishing the connection for voice communication; periodically receive, from the Web server, the periodically updated still image data in association with the predetermined URL, after the connection for voice communication is established; and control the display to periodically display the periodically updated still image data of the user of the called IP telephone apparatus, after the connection for voice communication is established.