> ## Documentation Index
> Fetch the complete documentation index at: https://docs.invoca.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Call Confidence Overview

> Call Confidence Technology (CCT) identifies and minimizes fraudulent calls, including an optional keypress challenge before a call reaches your agents.

Invoca's Call Confidence Technology (CCT) helps identify and minimize fraudulent calls. CCT provides this protection internally within the platform, and also offers additional features — free of charge, and optional — that you can enable or disable to challenge potentially fraudulent calls before they reach your agents.

CCT can instruct certain callers to input a number to proceed. Callers get 2 chances to respond correctly within a 3-second window before the system declares a failure and ends the call.

## Where to go next

* [Why Are Calls to RingPool Numbers Still Prompted Even When Custom Challenge Settings Are Disabled?](/s/article/calls-prompted-custom-challenge-disabled)
* [Is There a Way to Whitelist Phone Numbers to Be Exempt From CCT?](/s/article/whitelist-numbers-exempt-cct)