# Flow block in Amazon Connect: Call phone number
<a name="call-phone-number"></a>

This topic defines the flow block for the call phone number used for voice interactions with contact center customers.

## Description
<a name="call-phone-number-description"></a>
+ Use to place an outbound call from an **Outbound Whisper** flow.

## Supported channels
<a name="call-phone-number-channels"></a>

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


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

## Flow types
<a name="call-phone-number-types"></a>

You can use this block in the following [flow types](create-contact-flow.md#contact-flow-types):
+ Outbound Whisper flow

## Properties
<a name="call-phone-number-properties"></a>

The following image shows an example of what the **Call phone number** properties page looks like when you select a phone number manually. The **Select a number from your instance** option is selected, and the dropdown menu displays a list of available phone numbers claimed for your instance.

![\[The Call phone number properties page. The Select a number from your instance option.\]](http://docs.aws.amazon.com/connect/latest/adminguide/images/call-phone-number1.png)


The following image shows an example of what the **Call phone number** properties page looks like when you select a phone number dynamically. The **Use Attribute** option is selected. The **Namespace** box is set to **User-defined**. The **Attribute** box is set to **MainPhoneNumber**. 

![\[The properties page of the Call phone number block. The Use Attribute option is selected, Namespace is set to User-defined.\]](http://docs.aws.amazon.com/connect/latest/adminguide/images/call-phone-number2.png)


Outbound whisper flows run in Amazon Connect immediately after an agent accepts the call during direct dial and callback scenarios. When the flow runs: 
+ The caller ID number is set if one is specified in the [Call phone number](#call-phone-number) block.
+ If no caller ID is specified in the [Call phone number](#call-phone-number) block, the caller ID number defined for the queue is used when the call is placed.
+ When there is an error with a call that is initiated by the [Call phone number](#call-phone-number) block, the call is disconnected and the agent is placed in **AfterContactWork** (ACW).

Only published flows can be selected as the outbound whisper flow for a queue.

**Note**  
To use a custom caller ID, you must open an Support ticket to enable this feature. For more information, see [Set up outbound caller ID](https://docs.aws.amazon.com/connect/latest/adminguide/queues-callerid.html).

## Configured block
<a name="call-phone-number-configured-block"></a>

The following image shows an example of what this block looks like when it is configured. It shows the **Caller ID** phone number, and a **Success** branch.

![\[A configured Call phone number block.\]](http://docs.aws.amazon.com/connect/latest/adminguide/images/call-phone-number-configured.png)


There is no error branch for the block. If a call is not successfully initiated, the flow ends and the agent is placed in an **AfterContactWork** (ACW). 

## Sample flows
<a name="call-phone-number-sample-flows"></a>

Amazon Connect includes a set of sample flows. For instructions that explain how to access the sample flows in the flow designer, see [Sample flows in Amazon Connect](contact-flow-samples.md). Following are topics that describe the sample flows which include this block.
+ [Sample customer queue priority flow in Amazon Connect](sample-customer-queue-priority.md)
+  [Sample queue configurations flow in Amazon Connect](sample-queue-configurations.md)

## Scenarios
<a name="call-phone-number-scenarios"></a>

See these topics for more information about caller ID works:
+ [Set up outbound caller ID in Amazon Connect](queues-callerid.md)