Patent ID: 7283273

Claim:
An image communication apparatus comprising: storage means for storing IP addresses and identifiers of destination apparatuses in correspondence with telephone numbers of the destination apparatuses; input acceptance means for accepting input of a telephone number of a destination apparatus; first determination means for determining whether there is an IP address to be stored in the storage means in correspondence with the accepted telephone number; session request transmission means for, when the first determination means determines that an IP address has been stored in correspondence with the accepted telephone number, transmitting a session request to the destination apparatus so as to start image communication using the IP address; session request transmission means for, when the first determination means determines that no IP address has been stored in correspondence with the accepted telephone number, transmitting a session request to a first server; address reception means for receiving an IP address corresponding to the accepted telephone number from the first server; and storage control means for storing the received IP address in the storage means in correspondence with the accepted telephone number.