> For the complete documentation index, see [llms.txt](https://prosbcdocs.telcobridges.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://prosbcdocs.telcobridges.com/configuration-details/configuration-by-use-case/sip-trunking-configuration/vitalpbx-extension-creation.md).

# VitalPBX Extension Creation

## Introduction

This document provides instructions on how to add an extension to VitalPBX Server to work with the ProSBC. Please visit the following link for more details about [Creating an Extensions in VitalPBX Server](https://wiki.vitalpbx.org/documentation/vitalpbx-manual/pbx/extensions/extensions/)

## VitalPBX Extension Configuration

1\. Login into the administration portal via the IP address of the machine that is running VitelPBX.

2\. Select the Admin -> Network From the left menu to set the hostname of the device. In our example, it is set to sip.telcobridges.com

<figure><img src="https://docs.telcobridges.com/w/images/thumb/5/56/VitalPbx_Remote_Workers_2.png/800px-VitalPbx_Remote_Workers_2.png" alt=""><figcaption></figcaption></figure>

* Hostname, hostname of the system.

3\. Select the PBX tab at the top left and then from the drop-down menu click Extensions->Extensions.

<figure><img src="https://docs.telcobridges.com/w/images/thumb/9/96/VitalPbx_Remote_Workers_1.png/800px-VitalPbx_Remote_Workers_1.png" alt=""><figcaption></figcaption></figure>

* Extension, number to dial in order to reach this extension. The extension number must be unique, and should not conflict with an existing extension number, or any other number that is assigned to any other entity within the system, such as a conference, queue, ring group, feature code, etc. The value of this field cannot be changed after the extension has been saved.
* Name, name to identify this extension.
* User Device, username to be used when registering this device.
* Password, password (secret) associated with this device.
* Device Description, a short (optional) description to identify this device.
* Codecs, list of allowed codecs. The order in which the codecs are listed determines their order of preference.


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## 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, and the optional `goal` query parameter:

```
GET https://prosbcdocs.telcobridges.com/configuration-details/configuration-by-use-case/sip-trunking-configuration/vitalpbx-extension-creation.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

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.