I am not sure what you want to achieve exactly, and why?
The whole idea behind IPCC is that if an agent is ready, he is able to handle calls.
There are options in IPCCX to set the agent to working state instead of ready state when a call just finished, but is this what you are looking for?
Please try to be more specific on what you are trying to achieve, and I am sure there are forum members able to help you.
HTH,
Leo