Initiate an outbound call

In order to create an outbound call from a voice channel you can use this request. You can set a callFlow with commands to be executed after call is answered.

Call flow command initiate an outbound call

Check bellow the available commands when initiating an outbound call. In order to assess the options of each command, you may explore each command section.

type: string
enum:
  - hangup
  - playback
  - say
  - gather
  - record
  - bridge
  - pause

Create call

post

Create a channel call

Authorizations

useraccessKey

Path parameters

workspaceIdstring · uuidRequired

The ID of the workspace

channelIdstring · uuidRequired

The ID for a channel

Body

fromstringOptional

tostringRequired

ringTimeoutinteger · min: 3 · max: 120OptionalDefault: 30

maxDurationinteger · min: 1OptionalDefault: 14400

sendKeysstring · max: 20OptionalPattern: ^[0-9*#]+$

recordbooleanOptional

recordStartstring · enumOptionalPossible values:

flowStartstring · enumOptionalPossible values:

stereobooleanOptional

scheduledForstring · date-timeOptional

tagsstring[] · max: 10Optional

Tags to associate with the call. Tags are converted to lower case and tags that do not exist are automatically created. You can view your created tags in the UI. You can specify up to 10 tags per call.

Responses

202

Call was accepted for processing

application/json

400

The request did not pass validation

application/json

404

The request did not pass validation

application/json

422

The request did not pass validation

application/json

post

HTTPcURLJavaScriptPython

POST /workspaces/{workspaceId}/channels/{channelId}/calls HTTP/1.1
Host: 
Authorization: Bearer jwt
Content-Type: application/json
Accept: */*
Content-Length: 570

{
  "from": "text",
  "to": "text",
  "ringTimeout": 30,
  "maxDuration": 14400,
  "sendKeys": "text",
  "record": true,
  "recordStart": "record-from-answer",
  "flowStart": "from-answer",
  "stereo": true,
  "callFlow": [
    {
      "command": "hangup",
      "conditions": [
        {
          "variable": "keys",
          "operator": "eq",
          "value": "text"
        }
      ],
      "options": {
        "media": [
          "text"
        ],
        "loop": 1,
        "timeout": 1,
        "pauseMilliseconds": 1
      }
    }
  ],
  "scheduledFor": "2025-05-29T02:03:27.007Z",
  "notification": {
    "url": "text"
  },
  "amdSettings": {
    "enabled": false,
    "wordCount": 5,
    "speechTimeout": 3,
    "speechLocale": "en-US",
    "beepTimeout": 30,
    "ifMachineNotifyAfter": "wordCount"
  },
  "tags": [
    "text"
  ]
}

{
  "id": "123e4567-e89b-12d3-a456-426614174000",
  "channelId": "123e4567-e89b-12d3-a456-426614174000",
  "from": "text",
  "to": "text",
  "originator": {
    "contact": {
      "id": "text",
      "identifierKey": "text",
      "identifierValue": "text"
    },
    "number": {
      "type": "pstn",
      "number": "text",
      "anonymous": true,
      "callerIdName": "text",
      "identity": "text",
      "countryIsoCode": "text",
      "pstnNumberType": "text"
    }
  },
  "receiver": {
    "contact": {
      "id": "text",
      "identifierKey": "text",
      "identifierValue": "text"
    },
    "number": {
      "type": "pstn",
      "number": "text",
      "anonymous": true,
      "callerIdName": "text",
      "identity": "text",
      "countryIsoCode": "text",
      "pstnNumberType": "text"
    }
  },
  "parentId": "123e4567-e89b-12d3-a456-426614174000",
  "direction": "incoming",
  "status": "accepted",
  "reason": "text",
  "type": "pstn",
  "duration": 1,
  "hangupCauseCode": 1,
  "hangupSource": "callee",
  "hangupSipCode": "text",
  "createdAt": "2025-05-29T02:03:27.007Z",
  "updatedAt": "2025-05-29T02:03:27.007Z",
  "ringingAt": "2025-05-29T02:03:27.007Z",
  "answeredAt": "2025-05-29T02:03:27.007Z",
  "endedAt": "2025-05-29T02:03:27.007Z",
  "scheduledFor": "2025-05-29T02:03:27.007Z",
  "callFlow": {
    "id": "123e4567-e89b-12d3-a456-426614174000",
    "commands": [
      {
        "id": "123e4567-e89b-12d3-a456-426614174000",
        "callId": "123e4567-e89b-12d3-a456-426614174000",
        "callFlowId": "123e4567-e89b-12d3-a456-426614174000",
        "status": "text",
        "command": "text",
        "conditions": [
          {
            "variable": "keys",
            "operator": "eq",
            "value": "text"
          }
        ]
      }
    ]
  },
  "notification": {
    "url": "text"
  },
  "qualityInsights": {
    "mos": "text",
    "pdd": "text"
  },
  "sipInsights": {
    "hangupSipCode": "text",
    "edgeRegion": "text",
    "providerName": "text",
    "userAgent": "text",
    "remoteSignallingIp": "text",
    "remoteMediaIp": "text"
  },
  "amdResult": {
    "result": "human",
    "speech": "text",
    "locale": "text"
  },
  "sipType": "elastic",
  "tags": [
    "text"
  ]
}

Example 1: Initiate an outbound call, play an announcement and hangup

Request Headers

curl -X POST "https://api.bird.com/workspaces/:workspaceId/channels/:channelId/calls" \
     -H 'Authorization: Bearer {Token}'

Request Body

{
  "to": "[phone]",
    "callFlow": [
    {
      "command": "playback",
      "options": {
         "media": [
             "https://www.media.com.com/audio/code1.wav",
             "https://www.media.com.com/audio/code2.wav",
             "https://www.media.com.com/audio/code3.wav",
             "https://www.media.com.com/audio/code4.wav",
          ],
          "pauseMilliseconds": 100
      }
    },
    {
      "command": "hangup"
    }
  ]
}

Response

HTTP/1.1 202 Accepted
Content-Type: application/json; charset=UTF-8
Content-Length: 1041
Connection: close
Date: Thu, 29 Feb 2024 11:44:07 GMT
Messagebird-Request-Id: dfdc5b69-518f-4033-845b-cfd952ac1542
Vary: Origin
X-Cache: Miss from cloudfront
Via: 1.1 1d956df7e4e25ae74372a8b2c4cdb82e.cloudfront.net (CloudFront)
X-Amz-Cf-Pop: FCO50-P1
Alt-Svc: h3=":443"; ma=86400
X-Amz-Cf-Id: 5q_MM0W4I4L4O1R4pwlJuNMd8IplyIR1_EiO-kpk0yiuxh9TRBVvPA==
X-XSS-Protection: 1; mode=block
X-Frame-Options: DENY
Referrer-Policy: no-referrer
Content-Security-Policy: default-src 'self'; style-src 'self'; script-src 'self'; img-src 'self' data:; font-src 'self' data:; connect-src 'self'; object-src 'none'; media-src 'self'; frame-src 'self'; worker-src 'self' blob:; manifest-src 'self'; base-uri 'self'; form-action 'self'; frame-ancestors 'self';
X-Content-Type-Options: nosniff
Strict-Transport-Security: max-age=31536000; includeSubDomains; preload
Vary: Origin

{"id":"1e5e9219-2da2-4aa2-bf0f-8cc34775e6c0","channelId":"1499d657-31af-4ba0-b731-7eab3fb764be","originator":{"number":{"type":"pstn","number":"[phone]","countryIsoCode":"NL"}},"receiver":{"contact":{"id":"1fddcbcd-3ece-42da-82e1-ef48a8536b92","identifierKey":"phonenumber","identifierValue":"[phone]"},"number":{"type":"pstn","number":"[phone]","countryIsoCode":"PT"}},"from":"[phone]","to":"[phone]","direction":"outgoing","status":"accepted","type":"pstn","duration":0,"callFlow":{"id":"004a540b-897b-494c-a176-d7aec51d0257","commands":[{"id":"a28a931e-191c-4f2e-afcb-fa940f8e3a8a","callId":"1e5e9219-2da2-4aa2-bf0f-8cc34775e6c0","command":"playback","status":"accepted","callFlowId":"004a540b-897b-494c-a176-d7aec51d0257"},{"id":"d6022794-1c8e-44ab-8a9b-4e2deb2bf3e7","callId":"1e5e9219-2da2-4aa2-bf0f-8cc34775e6c0","command":"hangup","status":"accepted","callFlowId":"004a540b-897b-494c-a176-d7aec51d0257"}]},"notification":{},"createdAt":"2024-02-29T11:44:07.74Z","updatedAt":"2024-02-29T11:44:07.74Z"}

Example 2: Initiate an outbound call with TTS

Request Headers

curl -X POST "https://api.bird.com/workspaces/:workspaceId/channels/:channelId/calls \
     -H 'Authorization: Bearer {Token}'

Request Body

{
  "to": "[phone]",
  "callFlow": [
    {
      "command": "say",
      "options": {
        "locale": "en-US",
        "text": "Your TTS message here",
        "voice": "female"
      }
    },
    {
      "command": "hangup"
    }
  ]
}

Response

HTTP/1.1 202 Accepted
Content-Type: application/json; charset=UTF-8
Content-Length: 1041
Connection: close
Date: Thu, 29 Feb 2024 11:44:07 GMT
Messagebird-Request-Id: dfdc5b69-518f-4033-845b-cfd952ac1542
Vary: Origin
X-Cache: Miss from cloudfront
Via: 1.1 1d956df7e4e25ae74372a8b2c4cdb82e.cloudfront.net (CloudFront)
X-Amz-Cf-Pop: FCO50-P1
Alt-Svc: h3=":443"; ma=86400
X-Amz-Cf-Id: 5q_MM0W4I4L4O1R4pwlJuNMd8IplyIR1_EiO-kpk0yiuxh9TRBVvPA==
X-XSS-Protection: 1; mode=block
X-Frame-Options: DENY
Referrer-Policy: no-referrer
Content-Security-Policy: default-src 'self'; style-src 'self'; script-src 'self'; img-src 'self' data:; font-src 'self' data:; connect-src 'self'; object-src 'none'; media-src 'self'; frame-src 'self'; worker-src 'self' blob:; manifest-src 'self'; base-uri 'self'; form-action 'self'; frame-ancestors 'self';
X-Content-Type-Options: nosniff
Strict-Transport-Security: max-age=31536000; includeSubDomains; preload
Vary: Origin

{"id":"1e5e9219-2da2-4aa2-bf0f-8cc34775e6c0","channelId":"1499d657-31af-4ba0-b731-7eab3fb764be","originator":{"number":{"type":"pstn","number":"[phone]","countryIsoCode":"NL"}},"receiver":{"contact":{"id":"1fddcbcd-3ece-42da-82e1-ef48a8536b92","identifierKey":"phonenumber","identifierValue":"[phone]"},"number":{"type":"pstn","number":"[phone]","countryIsoCode":"PT"}},"from":"[phone]","to":"[phone]","direction":"outgoing","status":"accepted","type":"pstn","duration":0,"callFlow":{"id":"004a540b-897b-494c-a176-d7aec51d0257","commands":[{"id":"a28a931e-191c-4f2e-afcb-fa940f8e3a8a","callId":"1e5e9219-2da2-4aa2-bf0f-8cc34775e6c0","command":"playback","status":"accepted","callFlowId":"004a540b-897b-494c-a176-d7aec51d0257"},{"id":"d6022794-1c8e-44ab-8a9b-4e2deb2bf3e7","callId":"1e5e9219-2da2-4aa2-bf0f-8cc34775e6c0","command":"hangup","status":"accepted","callFlowId":"004a540b-897b-494c-a176-d7aec51d0257"}]},"notification":{},"createdAt":"2024-02-29T11:44:07.74Z","updatedAt":"2024-02-29T11:44:07.74Z"}