Hi Aniket,
This is a vast topic. However to get started, you read through the design guide and configuration guide for CVP.
Design Guide:
http://www.cisco.com/c/en/us/support/customer-collaboration/unified-customer-voice-portal/products-implementation-design-guides-list.html
Configure:
http://www.cisco.com/c/en/us/support/customer-collaboration/unified-customer-voice-portal/products-installation-and-configuration-guides-list.html
regards,
Deepu