Patent ID: 7768664

Claim:
A communication system comprising: a first apparatus and a second apparatus connected to a network the first apparatus including a first input unit configured to acquire first identification information from a first user accessible input device of the first apparatus; a first acquiring unit configured to acquire the first identification information from the first input unit, the first identification information corresponding to an identity of a desired second apparatus; a first receiving unit configured to receive a communication including second identification information from the second apparatus, the second identification information corresponding to an identity of the second apparatus; a first matching unit configured to match the first identification information with the second identification information; and a first transmitting unit configured to transmit the first identification information from the first apparatus to the second apparatus when the matching unit determines that the acquired first identification information does not coincide with the received second identification information and the second apparatus including a second input unit configured to acquire third identification information from a second user accessible input device of the second apparatus; a second receiving unit configured to receive the first identification information from the first apparatus; a second acquiring unit configured to acquire the third identification information from the second input unit, the third identification information corresponding to an identity of a desired first apparatus; a second matching unit configured to match the first identification information with the third identification information; a communication-destination determining unit configured to determine the first apparatus that is the transmission source of the first identification information when the second matching unit determines that the first identification information coincides with the third identification information; and a second transmitting unit configured to transmit predetermined information to the first apparatus determined by the communication-destination determining unit.