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# Send SMS

> Send one SMS from an Aircall line to a phone number. Input schema, a tools/call example and an example result.

Source: https://cotlet.dev/docs/mcp/aircall/send_message

Docs sections: [Get started](https://cotlet.dev/docs.md) · [REST API](https://cotlet.dev/docs/api.md) · [MCP](https://cotlet.dev/docs/mcp.md) · [SDKs & CLI](https://cotlet.dev/docs/sdks.md) · [Integrations](https://cotlet.dev/docs/integrations.md)

Send one SMS from an Aircall line to a phone number.

Aircall MCP tools: https://cotlet.dev/docs/mcp/aircall.md

MCP tool: `aircall_write → send_message`

Access: write. Confirm: waits for the user's OK before it runs.

Sends a one-to-one SMS from the line you name, as Aircall Workspace does after Start conversation and Send message. Aircall allows SMS only for numbers in the US, Canada, UK, France, Australia, Germany, Austria, Belgium, Denmark, Finland, the Netherlands, Sweden, Poland and Ireland. Sender and recipient must be in the same country, except US to Canada. In the UK, France, Australia and Germany the line must be a mobile number. A line that cannot send SMS fails with that reason. Text only, no MMS. The message reaches a customer. By default you confirm each call; you can switch that off for this tool.

## Parameters

| Name | Type | Required | Description |
|---|---|---|---|
| `line` | string | yes | Aircall line to send from, by name or number, as in list_calls. |
| `to` | string | yes | Recipient phone number in international format. |
| `body` | string | yes | Message text. |

## tools/call

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "aircall_write",
    "arguments": {
      "operation": "send_message",
      "arguments": {
        "line": "Sales US",
        "to": "+14155550142",
        "body": "Hi Priya, sorry we missed your call. We will ring you back today."
      }
    }
  }
}
```

## Example response

```json
{
  "content": [
    {
      "type": "text",
      "text": "{ ... same JSON as structuredContent ... }"
    }
  ],
  "structuredContent": {
    "message_id": "msg_30417",
    "conversation_id": "conv_5521",
    "line": "Sales US",
    "to": "+14155550142",
    "status": "sent",
    "sent_at": "2026-10-23T08:20:11Z"
  },
  "isError": false
}
```

Previous: [Add call note](https://cotlet.dev/docs/mcp/aircall/add_call_note.md)
Next: [Create contact](https://cotlet.dev/docs/mcp/aircall/create_contact.md)

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