# Adding ProSBC as a SIP Trunk in the Wildix Cloud VoIP PBX

## Introduction

This document provides instructions on how to configure Wildix Cloud VoIP PBX with the ProSBC as a SIP trunk. Please visit the following link for more details about [Wildix Cloud VoIP PBX documentation](https://wildix.atlassian.net/wiki/spaces/DOC/overview)

## Wildix Cloud VoIP PBX SIP Trunk Configuration

1 - Login to Wildix Collaboration. <https://yourdomain.wildixin.com/authorization/>. Your domain will be created by Wildix.<br>

<figure><img src="https://docs.telcobridges.com/w/images/thumb/1/17/Wildix_login.png/200px-Wildix_login.png" alt=""><figcaption></figcaption></figure>

2 - In the main menu Select Settings and click to Manage PBX

File:Wildix Manage PBX

3 - In the PBX menu Select Trunks and click to +Add

<figure><img src="https://docs.telcobridges.com/w/images/thumb/3/3d/Wildix_Trunk_Configuration_select.png/500px-Wildix_Trunk_Configuration_select.png" alt=""><figcaption></figcaption></figure>

4 - Add ProSBC Details in the new menu

```
  Title: Name of this trunk.
  Address or Host Name: Enter the ProSBC IP address or FQDN and the SIP port.
  Dialplan: Select a dial pan that will be used by this trunk configuration.
  Keep-Alive: This option must be enabled.
  

 


```

5 - Click on Advanced in the trunk configuration screen 6 - Configure Advanced options.

```
   Audio codecs: Select the codecs you want to use. proSBC supports Alaw, Ulaw, and G.729.
   Video codecs: Don't select. The ProSBC does not support Video.
   T38: If you want to use ProSBC to send faxes enable this option.
    

 


   DTMF mode: Select rfc2833 and set 101 for payload
   

 

 
   Click on Save button.
```


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://prosbcdocs.telcobridges.com/configuration-details/configuration-by-use-case/sip-trunking-configuration/adding-prosbc-as-a-sip-trunk-in-the-wildix-cloud-voip-pbx.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.