Patent ID: 7801160
Filing Date: 2010-09-21
Classification: H04L,H04N

Abstract:
1. A communication apparatus which connects to a call connection server and a destination apparatus over an IP network, the communication apparatus comprising: a call controller that exchanges SIP messages with the destination apparatus via the call connection server; a memory that stores data files; and a file transferer that transfers the data files to the destination apparatus, wherein after the file transferer transfers a first data file to the destination apparatus, the call controller transmits an SIP message to the destination apparatus to initiate the transfer of a second data file, and when the call controller receives an SIP message from the destination apparatus which includes wait instruction information, the file transferer waits for a time period specified by the wait instruction information, and then re-transmits the SIP message to the destination apparatus to initiate the transfer of the second data file.