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

# List SIP trunks

> Get all SIP trunks owned by the authenticated user

This endpoint returns a list of all SIP trunks associated with your account.

### Response

**data** `array`

Array of SIP trunk objects

**SIP trunk properties**

**id** `integer`

The unique identifier of the SIP trunk

**phone\_number** `string`

The SIP extension or phone number (DID) in E.164 format

**nickname** `string`

A short, human-friendly label for the trunk (or `null` if not set)

**sip\_username** `string`

The username used for SIP authentication

**sip\_address** `string`

The SIP server address

**sip\_calling\_format** `string`

The outbound calling number format: `+e164`, `e164`, or `national`

**inbound\_authorization\_type** `string`

The inbound authorization method: `auth` (username/password) or `ip` (IP whitelist)

**allowed\_inbound\_ips** `array`

Array of whitelisted IP addresses for inbound calls (only when `inbound_authorization_type` is `ip`)

**outbound\_proxy** `boolean`

Whether outbound calls use a fixed proxy IP address

**country\_code** `string`

The ISO 3166-2 country code where the SIP trunk is located

**created\_at** `string`

ISO 8601 timestamp of when the SIP trunk was created

**updated\_at** `string`

ISO 8601 timestamp of when the SIP trunk was last updated

```json 200 Response theme={null}
{
  "data": [
    {
      "id": 42,
      "phone_number": "1000",
      "nickname": "Provider X — Main",
      "sip_username": "myuser",
      "sip_address": "sip.provider.com",
      "sip_calling_format": "+e164",
      "inbound_authorization_type": "auth",
      "allowed_inbound_ips": null,
      "outbound_proxy": false,
      "country_code": "US",
      "created_at": "2026-03-31T10:00:00.000000Z",
      "updated_at": "2026-03-31T10:00:00.000000Z"
    },
    {
      "id": 43,
      "phone_number": "+14155551234",
      "nickname": null,
      "sip_username": "trunk_user",
      "sip_address": "sip.provider.com",
      "sip_calling_format": "e164",
      "inbound_authorization_type": "ip",
      "allowed_inbound_ips": ["203.0.113.10", "198.51.100.20"],
      "outbound_proxy": true,
      "country_code": "US",
      "created_at": "2026-03-31T11:00:00.000000Z",
      "updated_at": "2026-03-31T11:00:00.000000Z"
    }
  ]
}
```


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