Posting server, sending terminal, posting server control method and sending terminal control method

摘要

Prior to delivery of content data, SIP servers 104 and 106 mediate establishment of sessions between a posting server 102 and printing terminals 108P and 110P via a network 14 according to a signaling protocol SIP. On establishment of the sessions, the posting server 102 delivers the content data to the printing terminals 108P and 110P according to a data transfer protocol HTTP. This arrangement enables low-cost and high-quality delivery of print contents.