> ## Documentation Index
> Fetch the complete documentation index at: https://docs.bland.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Get SIP Config

> Retrieve the current SIP configuration for a phone number.

### Headers

<ParamField header="authorization" type="string" required>
  Your API key for authentication.
</ParamField>

### Query Parameters

<ParamField query="phone_number" type="string" required>
  The phone number to fetch SIP configuration for. Must be in E.164 format.
</ParamField>

### Response

<ResponseField name="data.inbound" type="object">
  Inbound SIP configuration, or `null` if not configured. Includes `number`, `id`, `org_id`, `direction`, `sip_endpoint`, `headers`, `options`, `created_at`, and `updated_at`. Sensitive fields (credentials) are redacted.
</ResponseField>

<ResponseField name="data.outbound" type="object">
  Outbound SIP configuration, or `null` if not configured. Same fields as inbound.
</ResponseField>

```json Example Request theme={null}
curl -X GET 'https://api.bland.ai/v1/sip?phone_number=%2B14150000000' \
  -H "Authorization: Bearer <token>"
```

<ResponseExample>
  ```json Response theme={null}
  {
    "data": {
      "inbound": {
        "number": "+14150000000",
        "id": "abc123",
        "org_id": "org_456",
        "direction": "inbound",
        "sip_endpoint": null,
        "created_at": "2026-03-09T12:00:00Z",
        "updated_at": "2026-03-09T12:00:00Z",
        "headers": null,
        "options": {
          "auth_mode": "ip"
        }
      },
      "outbound": {
        "number": "+14150000000",
        "id": "def789",
        "org_id": "org_456",
        "direction": "outbound",
        "sip_endpoint": "sip:trunk.provider.com",
        "created_at": "2026-03-09T12:00:00Z",
        "updated_at": "2026-03-09T12:00:00Z",
        "headers": null,
        "options": {
          "port": 5061,
          "transport": "tls",
          "secure_media": true
        }
      }
    },
    "errors": null
  }
  ```
</ResponseExample>

***

Docs for agents: [llms.txt](/llms.txt)