List SIP trunks

Get all SIP trunks owned by the authenticated user

Updated 30 June 2026

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

Response

dataarray

Array of SIP trunk objects

idinteger

  The unique identifier of the SIP trunk

phone_numberstring

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

nicknamestring

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

sip_usernamestring

  The username used for SIP authentication

sip_addressstring

  The SIP server address

sip_calling_formatstring

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

inbound_authorization_typestring

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

allowed_inbound_ipsarray

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

outbound_proxyboolean

  Whether outbound calls use a fixed proxy IP address

country_codestring

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

created_atstring

  ISO 8601 timestamp of when the SIP trunk was created

updated_atstring

  ISO 8601 timestamp of when the SIP trunk was last updated

{
  "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"
    }
  ]
}