Specifies the amount of time, in minutes, that the client waits for an HTTP session to time out before giving up.
This option provides variable session timeout control for Web service applications. A Web service application can change the timeout value from within any request that owns the HTTP session, but a change to the timeout value can impact subsequent queued requests if the HTTP session times out. The Web application must include logic to detect whether a client is attempting to access an HTTP session that no longer exists. This can be done by examining the value of the SessionCreateTime connection property to determine whether a timestamp is valid: if the HTTP request is not associated with the current HTTP session, the SessionCreateTime connection property contains an empty string.
See SessionCreateTime and http_session_timeout properties in SQL Anywhere 11.0.1 > SQL Anywhere Server - Database Administration > Configuring Your Database > Connection, database, and database server properties > Connection properties.