---
title: "Fetch an instance of a Domain"
method: GET
path: "/2010-04-01/Accounts/{AccountSid}/SIP/Domains/{Sid}.json"
tags: ["Api20100401Domain"]
---

# Fetch an instance of a Domain

`GET /2010-04-01/Accounts/{AccountSid}/SIP/Domains/{Sid}.json`

## Request

- Base URL: `https://api.twilio.com`
- URL: `https://api.twilio.com/2010-04-01/Accounts/{AccountSid}/SIP/Domains/{Sid}.json`
- Auth: HTTP basic

Fetch an instance of a Domain

## Path parameters

- `AccountSid` string, required
- `Sid` string, required

## Response `200`

OK

- ApiV2010AccountSipSipDomain
  - `account_sid` string, nullable: The SID of the [Account](https://www.twilio.com/docs/iam/api/account) that created the SipDomain resource.
  - `api_version` string, nullable: The API version used to process the call.
  - `auth_type` string, nullable: The types of authentication you have mapped to your domain. Can be: `IP_ACL` and `CREDENTIAL_LIST`. If you have both defined for your domain, both will be returned in a comma delimited string. If `auth_type` is not defined, the domain will not be able to receive any traffic.
  - `date_created` string, date-time-rfc-2822, nullable: The date and time in GMT that the resource was created specified in [RFC 2822](https://www.ietf.org/rfc/rfc2822.txt) format.
  - `date_updated` string, date-time-rfc-2822, nullable: The date and time in GMT that the resource was last updated specified in [RFC 2822](https://www.ietf.org/rfc/rfc2822.txt) format.
  - `domain_name` string, nullable: The unique address you reserve on Twilio to which you route your SIP traffic. Domain names can contain letters, digits, and "-" and must end with `sip.twilio.com`.
  - `friendly_name` string, nullable: The string that you assigned to describe the resource.
  - `sid` string, nullable: The unique string that that we created to identify the SipDomain resource.
  - `uri` string, nullable: The URI of the resource, relative to `https://api.twilio.com`.
  - `voice_fallback_method` 'GET' | 'POST', http-method, nullable: The HTTP method we use to call `voice_fallback_url`. Can be: `GET` or `POST`.
  - `voice_fallback_url` string, uri, nullable: The URL that we call when an error occurs while retrieving or executing the TwiML requested from `voice_url`.
  - `voice_method` 'GET' | 'POST', http-method, nullable: The HTTP method we use to call `voice_url`. Can be: `GET` or `POST`.
  - `voice_status_callback_method` 'GET' | 'POST', http-method, nullable: The HTTP method we use to call `voice_status_callback_url`. Either `GET` or `POST`.
  - `voice_status_callback_url` string, uri, nullable: The URL that we call to pass status parameters (such as call ended) to your application.
  - `voice_url` string, uri, nullable: The URL we call using the `voice_method` when the domain receives a call.
  - `subresource_uris` object, nullable: A list of mapping resources associated with the SIP Domain resource identified by their relative URIs.
  - `sip_registration` boolean, nullable: Whether to allow SIP Endpoints to register with the domain to receive calls.
  - `emergency_calling_enabled` boolean, nullable: Whether emergency calling is enabled for the domain. If enabled, allows emergency calls on the domain from phone numbers with validated addresses.
  - `secure` boolean, nullable: Whether secure SIP is enabled for the domain. If enabled, TLS will be enforced and SRTP will be negotiated on all incoming calls to this sip domain.
  - `byoc_trunk_sid` string, nullable: The SID of the BYOC Trunk(Bring Your Own Carrier) resource that the Sip Domain will be associated with.
  - `emergency_caller_sid` string, nullable: Whether an emergency caller sid is configured for the domain. If present, this phone number will be used as the callback for the emergency call.

## Changes

- **2024-04-18** (v2010) `cf63f47f41aa`: 12 info
  - removed the `DELETE` enum value from the `voice_fallback_method` response property for the response status `200`
  - removed the `DELETE` enum value from the `voice_method` response property for the response status `200`
  - removed the `DELETE` enum value from the `voice_status_callback_method` response property for the response status `200`
  - removed the `HEAD` enum value from the `voice_fallback_method` response property for the response status `200`
  - …8 more

[Operation history](https://skmtc.dev/twilio/apis/api-v2010/changes/2010-04-01/Accounts/:AccountSid/SIP/Domains/:Sid.json/get.md)

---

[API](https://skmtc.dev/twilio/apis/api-v2010.md) - [All operations](https://skmtc.dev/twilio/apis/api-v2010/llms.txt) - [OpenAPI document](https://skmtc.dev/twilio/apis/api-v2010/revisions/bfdf249a1298?raw)