Patent ID: 7921094

Claim:
A network system, comprising: a first communication device; a second communication device composed separately from the first communication device; and a server composed separately from the first communication device, wherein the first communication device comprises: a first input device that allows a user to input a keyword; a first search device capable of carrying out a first search process that includes sending the keyword input to the first input device to a search engine and receiving a search result; and a keyword sending device that sends a combination of the keyword used for the first search process and communication device identification information of the first communication device to the server, wherein the server comprises a keyword database that stores the combination of the keyword and the communication device identification information of the first communication device, wherein the second communication device comprises: a telephone device capable of receiving telephone identification information from a source when receiving an incoming call from the source; a keyword acquisition device capable of acquiring the keyword from the server in a case where the telephone device receives the incoming call; and a second search device capable of carrying out a second search process that includes sending the keyword acquired by the keyword acquisition device to a search engine and receiving a search result, and wherein the server further comprises: a first identification information database that stores a combination of the communication device identification information of the first communication device and the telephone identification information; and a first identification information identifying device that identifies, from the first identification information database, the communication device identification information combined with the telephone identification information received by the telephone device; and wherein the keyword acquisition device acquires, from the server, the keyword combined with the communication device identification information identified by the first identification information identifying device.