# SIP Trunk Configuration Instruction with FreeSWITCH

## Introduction

SIP Trunk Configuration Instruction with FreeSWITCH Example Configuration provides you with a step by step SIP Trunk Configuration of ProSBC with FreeSWITCH systems, using the Web Portal configuration tool. Complete general installation configuration steps, before you begin configuring your specific scenario. In this guide FQDN (freeswitch.telcobridges.com) configured in the FreeSWITCH server. If you don't use FQDN, you can use the FreeSWITCH IP address too. Please check how to configure the SIP Trunk in FreeSWITCH for ProSBC from [FreeSWITCH Trunk Creation](/configuration-details/configuration-by-use-case/sip-trunking-configuration/freeswitch-sip-trunk-creation.md)

## FreeSWITCH SIP Trunk Example

<figure><img src="https://docs.telcobridges.com/w/images/thumb/9/97/FreeSWITCH_Trunking_1.png/800px-FreeSWITCH_Trunking_1.png" alt=""><figcaption></figcaption></figure>

**Configuration Steps**

| <p>(Step 1)<br>Create IP Network</p>                                                                                                                                                                                                                                                                                  | <p>(Step 2)<br>Create Protocol Stack</p>                                                                                                                                                                                                                                                                                                                                           | <p>(Step 3)<br>Create Call Route</p>                                                  |
| --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------- |
| <ul><li><a href="/pages/4Da0Y3tkR3YPkiQiMJq4">Configuring an IP Virtual Port</a></li><li><a href="/pages/7IjxZtyxERk988tkvjsb">Configuring a VLAN</a></li><li><a href="/pages/ZYQWWTQHLo88LCavuZ5C">Configuring IP Interfaces</a></li><li><a href="/pages/NQKpeugKPfvYlTTGh7AK">Create an IP port range</a></li></ul> | <ul><li><a href="/pages/NQKpeugKPfvYlTTGh7AK">Create an IP port range</a></li><li><a href="/pages/VG69umnT77U6581Yi96D">Create a SIP stack</a></li><li><a href="/pages/jvLDDqDqfgCJs0rS860W">Create a SIP transport server</a></li><li><a href="/pages/0aNbDh4Fvt05NbBm5vzb">Modify profile</a></li><li><a href="/pages/caC9hju5KNDcBruRFiOH">Allocate a SIP NAP</a><br></li></ul> | <ul><li><a href="/pages/d4TYj9I5RiFaLe6xDXIx">Create a first call route</a></li></ul> |

## NAP Configuration

* See [Create SIP NAP](/configuration-details/configuration-by-web-portal-category/network-access-points-nap.md)
  * Here, You must create two NAPs, one SIP NAP will be FreeSWITCH NAP and the other NAP will be for the SIP trunk provided by ITSP

Optional

* [SIP Trunk with Registration](/configuration-details/configuration-by-use-case/configuring-sip-registration-to-sip-proxy.md)


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