The Flash Operator Panel (or FOP, as it’s more commonly known) is an interface primarily for the use of switchboard operators. FOP uses Adobe Flash to present an interface through a web browser, and connects to Asterisk through the Asterisk Manager Interface (see Chapter 20, Asterisk Manager Interface (AMI) for a discussion of the AMI).
There are two versions of the Flash Operator Panel: the original release (which so far is at version 0.30, and is now a maintenance release only), and FOP2 (shown in Figure 25.1, “FOP2”), which is a vast improvement over the original FOP, but requires the purchase of a license for any system with more than 15 extensions.
You can find FOP at http://www.asternic.org, and FOP2 at http://www.fop2.com.