Patent ID: 8457285

Claim:
A communication device, comprising: a first communication unit configured to communicate with a first device having a telephone function, through a first network; a second communication unit configured to communicate with a second device having a function of reproducing sound through a second network; a receiving unit configured to receive an incoming message from the first device; a data storage unit configured to store an incoming message from the first device as sound data having a first data format which the second device does not support; a conversion unit configured to convert the sound data having the first data format to sound data having a second data format which the second device supports; a time obtaining unit configured to obtain time information representing a reception time when the incoming message from the first device is received; a reception time data generating unit configured to generate reception time data representing the reception time based on the reception time; and a sound data transmission unit configured to transmit the sound data having the second data format converted by the conversion unit and the generated reception time data to the second device through the second network.