# Send SMS Command to a Sim.

**POST /v1/SmsCommands**

Send SMS Command to a Sim.
Machine-to-machine SMS Commands sent to/from SIMs

## Servers
- https://supersim.twilio.com: https://supersim.twilio.com ()


## Authentication methods
- Account sid auth token


## Parameters



### Body: application/x-www-form-urlencoded (object)

- **Sim** (string)
  The `sid` or `unique_name` of the [SIM](https://www.twilio.com/docs/iot/supersim/api/sim-resource) to send the SMS Command to.
- **Payload** (string)
  The message body of the SMS Command.
- **CallbackMethod** (string(http-method))
  The HTTP method we should use to call `callback_url`. Can be: `GET` or `POST` and the default is POST.
- **CallbackUrl** (string(uri))
  The URL we should call using the `callback_method` after we have sent the command.


## Responses
### 201
Created
#### Headers
- **Access-Control-Allow-Origin** (string)
  Specify the origin(s) allowed to access the resource
- **Access-Control-Allow-Methods** (string)
  Specify the HTTP methods allowed when accessing the resource
- **Access-Control-Allow-Headers** (string)
  Specify the headers allowed when accessing the resource
- **Access-Control-Allow-Credentials** (boolean)
  Indicates whether the browser should include credentials
- **Access-Control-Expose-Headers** (string)
  Headers exposed to the client

#### Body: application/json (object)
- **sid** (string | null)
  The unique string that we created to identify the SMS Command resource.
- **account_sid** (string | null)
  The SID of the [Account](https://www.twilio.com/docs/iam/api/account) that created the SMS Command resource.
- **sim_sid** (string | null)
  The SID of the [SIM](https://www.twilio.com/docs/iot/supersim/api/sim-resource) that this SMS Command was sent to or from.
- **payload** (string | null)
  The message body of the SMS Command sent to or from the SIM. For text mode messages, this can be up to 160 characters.
- **status** (string)
  The status of the SMS Command. Can be: `queued`, `sent`, `delivered`, `received` or `failed`. See the [SMS Command Status Values](https://www.twilio.com/docs/iot/supersim/api/smscommand-resource#status-values) for a description of each.
- **direction** (string)
  The direction of the SMS Command. Can be `to_sim` or `from_sim`. The value of `to_sim` is synonymous with the term `mobile terminated`, and `from_sim` is synonymous with the term `mobile originated`.
- **date_created** (string(date-time) | null)
  The date and time in GMT when the resource was created specified in [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601) format.
- **date_updated** (string(date-time) | null)
  The date and time in GMT when the resource was last updated specified in [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601) format.
- **url** (string(uri) | null)
  The absolute URL of the SMS Command resource.


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