# Configuration for Adding ProSBC as a SIP Trunk in the FreePBX Server

## Introduction

This document provides instructions on how to configure FreePBX Server with the ProSBC a s SIP trunk. Please visit the following link for more details about [Configuring SIP Trunks in FreePBX Server](https://wiki.freepbx.org/display/F2/Trunk+Sample+Configurations)

## FreePBX SIP Trunk Configuration

1\. After logging in as an Admin to your FreePBX GUI, navigate to “Connectivity” → “Trunks” and press the “Add Trunk” button. Select the option “Add SIP (chan\_pjsip) Trunk”<br>

<figure><img src="https://docs.telcobridges.com/w/images/1/15/FreePBX_Trunk_1.png" alt=""><figcaption></figcaption></figure>

2\. Once done, this will bring up the Trunk Creation Screen. Under the General tab, enter a name for the trunk. For ease of management, It is recommended that this match the name of the SIP Endpoint you created in the ProSBC WebGUI for FreePBX NAP.<br>

<figure><img src="https://docs.telcobridges.com/w/images/7/7e/FreePBX_Trunk_2.png" alt=""><figcaption></figcaption></figure>

3\. Once done, navigate to the “pjsip Settings" → "General” tab. Here you will need to enter your endpoint information. If you're using an IP endpoint,

* Select None for Authentication
* SIP Server: Enter the Domain of your SIP Trunk (ProSBC FQDN or IP address)
* SIP Server Port: Set this to 5060<br>

<figure><img src="https://docs.telcobridges.com/w/images/7/7e/FreePBX_Trunk_3.png" alt=""><figcaption></figcaption></figure>

4\. Once done, select the “PJSIP Settings” → “Codecs” Tab. Ensure correct codec are selected.<br>

<figure><img src="https://docs.telcobridges.com/w/images/7/77/FreePBX_Trunk_4.png" alt=""><figcaption></figcaption></figure>

## FreePBX Route Configuration

1\. To create an inbound route, navigate to “Connectivity” → “Inbound Routes” and click on "Add Inbound Route"<br>

<figure><img src="https://docs.telcobridges.com/w/images/d/d2/FreePBX_In_Route_1.png" alt=""><figcaption></figcaption></figure>

2\. Then set your options:

* Description: add a description of the route.
* DID Number: fill in the DID number that you will have from your ITSP
* Set Destination: choose Extensions from the first drop down and then select the extension you created from the second drop down

<figure><img src="https://docs.telcobridges.com/w/images/c/c5/FreePBX_In_Route_2.png" alt=""><figcaption></figcaption></figure>

Once done, “Submit” the configuration.

3\. To create an outbound route, navigate to “Connectivity” → “Outbound Routes” and click on "Add Outbound Route"<br>

<figure><img src="https://docs.telcobridges.com/w/images/a/af/FreePBX_Out_Route_1.png" alt=""><figcaption></figcaption></figure>

4\. Under the “Route Settings” tab, leave everything as the default except the following:

* Route Name: Add a friendly name for the route you are creating.
* Trunk Sequence for Matched Routes: Use the drop down button to select the SIP Trunk you just created.

<figure><img src="https://docs.telcobridges.com/w/images/4/43/FreePBX_Out_Route_2.png" alt=""><figcaption></figcaption></figure>

5\. Once done, select the “Dial Patterns” tab. You can manually define the dial patterns or use Dial Pattern wizard.<br>

<figure><img src="https://docs.telcobridges.com/w/images/c/c8/FreePBX_Out_Route_3.png" alt=""><figcaption></figcaption></figure>

6\. Once done, “Submit” the configuration and press the “Apply Config” button. The route is ready to be used and your FreePBX is now configured to with ProSBC.


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