# Flow block in Amazon Connect: Check Voice ID
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**Note**  
End of support notice: On May 20, 2026, AWS will end support for Amazon Connect Voice ID. After May 20, 2026, you will no longer be able to access Voice ID on the Amazon Connect console, access Voice ID features on the Amazon Connect admin website or Contact Control Panel, or access Voice ID resources. For more information, visit [Amazon Connect Voice ID end of support](https://docs.aws.amazon.com/connect/latest/adminguide/amazonconnect-voiceid-end-of-support.html). 

This topic describes how the Check Voice ID block branches based on data returned by Amazon Connect Voice ID.

## Description
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**Note**  
The [Set Voice ID](set-voice-id.md) block needs to be set in the flow before this one. That block sends audio to [Amazon Connect Voice ID](voice-id.md) to verify the customer's identity, and returns a status. 

The **Check Voice ID** block branches based on the results of the voice analysis and the status returned by Voice ID:
+ **Enrollment status**: 
  + **Enrolled**: The caller is enrolled in voice authentication.
  + **Not enrolled**: The caller has not yet been enrolled in voice authentication. When this status is returned, for example, you may want to directly route the call to an agent for enrollment.
  + **Opted out**: The caller has opted out of voice authentication.

  You are not charged for checking enrollment status. 
+ **Voice authentication status**:
  + **Authenticated**: The caller's identity has been verified. That is, the authentication score is greater than or equal to the threshold (default threshold of 90 or your custom threshold).
  + **Not authenticated**: The authentication score is lower than threshold that you configured.
  + **Inconclusive**: Unable to analyze a caller's speech for authentication. This is usually because Voice ID did not get the required 10 seconds to provide a result for authentication. 
  + **Not enrolled**: The caller has not yet been enrolled in voice authentication. When this status is returned, for example, you may want to directly route the call to an agent for enrollment.
  + **Opted out**: The caller has opted out of voice authentication.

  You are not charged if the result is **Inconclusive**, **Not enrolled** or **Opted out**.
+ **Fraud detection status**: 
  + **High risk**: The risk score meets or exceeds the set threshold.
  + **Low risk**: The risk score did not meet the set threshold.
  + **Inconclusive**: Unable to analyze a caller's voice for detection of fraudsters in a watchlist.

  You are not charged if the result is **Inconclusive**.

**Note**  
For **Enrollment status** and **Voice authentication**, the [Customer ID](connect-attrib-list.md) system attribute needs to be set in [Set contact attributes](set-contact-attributes.md) block because they are acting on a specific customer. You don't need to do this for **Fraud detection** because it's not acting on a specific customer but rather detecting whether the incoming caller matches a fraudster on your watch list. This means it's possible for a customer to be successfully authenticated and still have high fraud risk. 

## Supported channels
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The following table lists how this block routes a contact who is using the specified channel. 


| Channel | Supported? | 
| --- | --- | 
| Voice | Yes | 
| Chat | No - Error branch | 
| Task | No - Error branch | 
| Email | No - Error branch | 

## Flow types
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You can use this block in the following [flow types](create-contact-flow.md#contact-flow-types):
+ Inbound flow
+ Customer queue flow
+ Customer whisper flow
+ Outbound whisper flow
+ Agent whisper flow
+ Transfer to Agent flow
+ Transfer to Queue flow

## Properties
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This block doesn't have any properties that you set. Rather, it creates branches for you to route contacts based on the result of the authentication threshold and voiceprint evaluation that [Set Voice ID](set-voice-id.md) returns.

The following image shows the **Properties** page for the **Check voice ID** block when it's configured to check for Enrollment status. Different status results are returned when it's configured for **Voice authentication** or **Fraud detection**.

![\[The properties page of the Check voice ID block, with the Enrollment status option selected.\]](http://docs.aws.amazon.com/connect/latest/adminguide/images/check-voice-id-properties.png)


## Configuration tips
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When you create a flow that uses this block, add these blocks in the following order:

1. [Set Voice ID](set-voice-id.md) block. 

1. [Set contact attributes](set-contact-attributes.md) block: For **Enrollment status** and **Voice authentication**, the [Customer ID](connect-attrib-list.md) system attribute needs to be set in [Set contact attributes](set-contact-attributes.md) block because it is acting on a specific customer.

1. **Check Voice ID** block.

## Configured block
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The following three images show what this block looks like when it's configured to check for: 

1. Fraud detection

1. Voice authentication

1. Enrollment status

![\[Three configured Check voice ID blocks.\]](http://docs.aws.amazon.com/connect/latest/adminguide/images/check-voice-id-configured.png)


## More information
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See the following topics for more information about this block:
+ [Use real-time caller authentication with Voice ID in Amazon Connect](voice-id.md)
+ [Enroll callers in Voice ID in the Contact Control Panel (CCP)](use-voiceid.md)