---
title: "Create SIPDomain"
slug: "create-sipdomain"
tags: ["Telephony", "Twilio"]
updated: 2025-08-05T13:55:31Z
published: 2025-08-05T13:55:31Z
canonical: "documentation.decisions.com/create-sipdomain"
---

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

# Create SIPDomain

| Step Details |
| --- |
| **Introduced in Version** | 4.0.0 |
| **Last Modified in Version** | 7.12.0 |
| **Location** | Integration > Twilio > Admin |

The **Create SIPDomain** step allows the user to create a new SIP domain. An SIP domain is a custom DNS hostname associated with a user's Twilio account that can accept SIP traffic. If anyone makes an SIP request using that domain, (e.g. [sip:name@example.sip.us1.twilio.com](mailto:sip:name@example.sip.us1.twilio.com)), it will be routed over the internet to Twilio.

### Prerequisites

- This step requires the [Telephony Module](https://documentation.decisions.com/docs/telephony) to be [installed](https://documentation.decisions.com/docs/installing-modules-decisions) before it will be available in the toolbox.
- **For v9 users:** Add a [Project Dependency](https://documentation.decisions.com/docs/project-dependencies) once the Telephony Module is installed.

---

## Properties

#### Inputs

| Property | Description | Data Type |
| --- | --- | --- |
| Friendly Name | The user-defined label assigned to the domain for easier readability. | String |
| New Domain | The name of the new SIP domain to be created. The name may contain letters, numbers, and "-". | String |

#### Outputs

| Property | Description | Data Type |
| --- | --- | --- |
| CreateSIPDomain_Output | The newly created SIP Domain. | String |

![](https://cdn.document360.io/6ef8bcc1-6489-4486-9ad1-83acff7e5df0/Images/Documentation/image-1750865175067.png)