# Check communication status
<a name="journey-flow-block-check-communication-status"></a>

## Description
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Use this block to verify whether an outbound message or voice call succeeded before proceeding. You can add up to 5 conditions.

**Example use cases**
+ Follow up only after an SMS or email is delivered.
+ Retry or route to an agent if a call fails or reaches voicemail.

## How to configure this block
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You can configure the **Check communication status** block in the admin website or using the CheckCommunicationStatus action in Flow language.

## Supported status
<a name="journey-flow-block-check-communication-status-supported"></a>


| Channel | Status | 
| --- | --- | 
| WhatsApp | Failed | 
|  | Delivered | 
|  | Sent | 
|  | Read | 
| SMS | Text invalid | 
|  | Text blocked | 
|  | Text delivered | 
|  | Text successful | 
|  | Text queued | 
|  | Text pending | 
|  | Text TTL expired | 
|  | Text carrier unreachable | 
|  | Text invalid message | 
|  | Text carrier blocked | 
|  | Text spam | 
|  | Text unknown | 
| Voice | Voicemail beep | 
|  | Voicemail no beep | 
|  | AMD unanswered | 
|  | Sit tone busy | 
|  | Sit tone invalid number | 
|  | Human answered | 
|  | AMD unresolved | 
|  | AMD unresolved\_silence | 
|  | AMD not applicable | 
|  | Sit tone detected | 
|  | Fax machine detected | 
|  | AMD error | 
|  | Outbound destination endpoint error | 
|  | Outbound resource error | 
|  | Outbound attempt failed | 
|  | Outbound preview discarded | 
|  | Expired | 
|  | AMD disabled | 
|  | Initiated | 
|  | connected\_to\_system | 
|  | Contact data updated | 
|  | Queued | 
|  | Connected to agent | 
|  | Disconnected | 
|  | Completed | 
| Email | Bounce | 
|  | Complaint | 
|  | Delivery | 
|  | Send | 
|  | Reject | 
|  | Open | 
|  | Click | 
|  | Rendering Failure | 
|  | DeliveryDelay | 
|  | Subscription |