Sun Java System Calendar Server 6.3 Administration Guide

1.10.2 HTTP Service: cshttpd in Calendar Server Version 6.3

Since Calendar Server uses HTTP as its primary transport, the cshttpd service listens for HTTP commands from Calendar Server end users, receives the user commands, and returns calendar data, depending on the format specified in the incoming WCAP command. Data can be formatted in standard RFC 2445 iCalendar format (text/calendar) or XML format (text/xml