[Asterisk-Users] Asterisk URL and Callcenter Apps

[Anton Krall]

Guys.

How do those callcenter apps work with Asterisk where a call comes in and *
send a URL and some screen popup up based on callerid or something or
username or id and shows all the customers info?

Anybody done that? What do you need to do that? 
If you are using ATAs or IP Phones, how do those integrate with the PC so
the screen would popup?