This is a tray icon (c++) for windows which shows parked calls (or other state info) of the asterisk pbx. The sample server script (php) emulates a calling queue with the pbx call parking feature, so agents simply dial 701,702,.. to pickup incoming calls
WolfPack PBX is self installing package based on Asterisk. It comes packaged with Vtiger, CentOS, MySql, Webmin and a web GUI interface for easy configuration. Sets up in about 1 hour depending on hardware, no additional hardware is required to use.