Follow the instructions for configuring Unified CCX in the
Unified CCX application configuration checklist.
The sysadmin must create an application that uses the icd.aef script, configure
that application, and then configure a Unified CM Telephony trigger (CTI route
point) for the application.
icd.aef has a parameter called CSQ. This CSQ is a mandatory field
which must be filled in for the script to function properly.
A Unified CM Telephony trigger responds to calls that arrive
on a specific route point by selecting telephony and media resources to serve
the call and invoking an application script to handle the call.
For instructions on creating or modifying an Unified CCX
Designing Unified CCX Scripts
section in the Cisco Unified CCX Scripting and Development
Series: Volume 1, Getting Started with Scripts.