# Integrating Elastic SIP Trunking with FusionPBX

Sinch Elastic SIP Trunking can easily integrate with FusionPBX. Follow this guide to learn how!

## Before you start

Before you begin setting up your Sinch Elastic SIP trunk make sure you have done the following:

* Sign up for a free account at https://www.sinch.com/ and request access for Elastic SIP Trunking. Need help? Click [here](https://community.sinch.com/t5/Customer-Dashboard/How-to-sign-up-for-your-free-Sinch-account/ta-p/8058) for instructions.
* If you have not already done so, configure and create your Elastic SIP trunk. Instructions on how to do this can be found [here](https://community.sinch.com/t5/Elastic-SIP-Trunking/Getting-started-with-Elastic-SIP-Trunking/ta-p/11380).
* Ensure you note the fully qualified domain name (FQDN) that was created on your SIP Trunk. You will need this while setting up your IP-PBX or SIP Application.


## Configuring your FusionPBX

1. Log into your Fusion PBX with Admin privileges and navigate to **Gateways** under the **Accounts** section of the UI.
![gateways](/assets/fusionpbx_gateways.92c6c7f6b449b3f1ad4615992c5fb978ae049c547a27a13d242200e97dccff7e.f40ae551.png)
2. On the **Gateway** screen, click the **Add** button.
![add](/assets/fusionpbx_add.5014a5304c8f6bcaf2ce2d3036bb5dde3e772ab281fbce28ba6bdbe39099c4ba.f40ae551.png)
3. Configure your gateway with the necessary information to pass calls over your Elastic SIP Trunk:
| Property name | Required value |
|  --- | --- |
| **Gateway** | The friendly name of your gateway (for example, "Sinch-est trunk") |
| **From domain** | `pstn.sinch.com` |
| **Proxy** | Enter the FQDN you created when configuring your SIP Trunk. |
| **Realm** | `pstn.sinch.com` |
| **Register** | `False` |
| **Context** | `default` (unless your system admin has changed it) |
| **Profile** | `External` (unless your system admin has changed it) |
![configure](/assets/fusionpbx_configure.7927d78b282fc1d7eec0c145a8c4b72797551cd15211ed6a10c08156092285fe.f40ae551.png)
4. Save your configuration and now your Elastic SIP trunk should be operational and ready for traffic. Assign a number to your trunk and give it a try!