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Flash Calling API

The Flash Call API is used to initiate a flash call within a specific workspace and channel.

This API enables users to leverage flash calls for quick and efficient number validation or authentication processes.

This API initiates a call to the destination number. If the call is answered, it will be immediately terminated.

Create flash call

post

Create a new channel flash call

Authorizations
Path parameters
workspaceIdstring · uuidRequired

The ID of the workspace

channelIdstring · uuidRequired

The ID for a channel

Query parameters
Body
fromstringOptional
tostringRequired
ringTimeoutinteger · min: 3 · max: 120OptionalDefault: 30
Responses
202
Flash Call was accepted for processing
application/json
post
POST /workspaces/{workspaceId}/channels/{channelId}/flashcalls HTTP/1.1
Host: 
Authorization: Bearer jwt
Content-Type: application/json
Accept: */*
Content-Length: 44

{
  "from": "text",
  "to": "text",
  "ringTimeout": 30
}
{
  "id": "123e4567-e89b-12d3-a456-426614174000",
  "channelId": "123e4567-e89b-12d3-a456-426614174000",
  "from": "text",
  "to": "text",
  "status": "accepted",
  "ringTimeout": 1,
  "attemptPrice": {
    "amount": 1,
    "exponent": 1,
    "currency": "text"
  },
  "connectionPrice": {
    "amount": 1,
    "exponent": 1,
    "currency": "text"
  },
  "reason": "text",
  "duration": 1,
  "createdAt": "2025-07-10T01:53:18.072Z",
  "updatedAt": "2025-07-10T01:53:18.072Z",
  "ringingAt": "2025-07-10T01:53:18.072Z",
  "answeredAt": "2025-07-10T01:53:18.072Z",
  "endedAt": "2025-07-10T01:53:18.072Z"
}

To terminate a flash call resource, or update the result of the verification, user can do a POST to a flash call resource, using this endpoint.

End flash call

post

Completes the channel flash call

Authorizations
Path parameters
workspaceIdstring · uuidRequired

The ID of the workspace

channelIdstring · uuidRequired

The ID for a channel

callIdstring · uuidRequired

The ID for a call

Body
receivedClistringOptional
resultstring · enumRequiredPossible values:
Responses
202
Hangup Flash Call was accepted for processing
application/json
post
POST /workspaces/{workspaceId}/channels/{channelId}/flashcalls/{callId} HTTP/1.1
Host: 
Authorization: Bearer jwt
Content-Type: application/json
Accept: */*
Content-Length: 41

{
  "receivedCli": "text",
  "result": "unknown"
}
{
  "receivedCli": "text",
  "result": "unknown"
}

User can also chose to hangup calls, using a combination of From and To numbers:

End flash call

post

Completes the channel flash call

Authorizations
Path parameters
workspaceIdstring · uuidRequired

The ID of the workspace

channelIdstring · uuidRequired

The ID for a channel

Body
any ofOptional
or
Responses
202
Hangup Flash Call was accepted for processing
application/json
Responseany of
or
post
POST /workspaces/{workspaceId}/channels/{channelId}/flashcalls/hangup HTTP/1.1
Host: 
Authorization: Bearer jwt
Content-Type: application/json
Accept: */*
Content-Length: 41

{
  "receivedCli": "text",
  "result": "unknown"
}
{
  "receivedCli": "text",
  "result": "unknown"
}

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