# SIP Trunk Configuration Instruction with Cisco UCM

## Introduction

SIP Trunk Configuration Instruction with Cisco Unified Communications Manager Example Configuration provides you with a step-by-step SIP Trunk Configuration of ProSBC with Cisco UCM 12 systems, using the Web Portal configuration tool. Complete general installation configuration steps, before you begin configuring your specific scenario. Please check how to configure the SIP Trunk in Cisco UCM for ProSBC from [Adding ProSBC as a SIP Trunk in Cisco UCM](https://prosbcdocs.telcobridges.com/configuration-details/configuration-by-use-case/sip-trunking-configuration/cisco-ucm-12-trunk-creation)

## Cisco UCM SIP Trunk Example

<figure><img src="https://docs.telcobridges.com/w/images/thumb/4/4b/Cisco_ucm.png/800px-Cisco_ucm.png" alt=""><figcaption></figcaption></figure>

**Configuration Steps**

<table data-header-hidden><thead><tr><th width="258"></th><th></th><th></th></tr></thead><tbody><tr><td>(Step 1)<br>Create IP Network</td><td>(Step 2)<br>Create Protocol Stack</td><td>(Step 3)<br>Create Call Route</td></tr><tr><td><ul><li><a href="../../configuration-by-web-portal-category/ip-network-settings/configuring-a-virtual-port">Configuring an IP Virtual Port</a></li><li><a href="../../configuration-by-web-portal-category/ip-network-settings/configuring-a-vlan">Configuring a VLAN</a></li><li><a href="../../configuration-by-web-portal-category/ip-network-settings/configuring-ip-interfaces">Configuring IP Interfaces</a></li><li><a href="../rtp-no-anchoring/parameter-allow-low-delay-media-relay/configuring-an-ip-port-range">Create an IP port range</a></li></ul></td><td><ul><li><a href="../rtp-no-anchoring/parameter-allow-low-delay-media-relay/configuring-an-ip-port-range">Create an IP port range</a></li><li><a href="../../configuration-by-web-portal-category/sip/creating-a-sip-stack">Create a SIP stack</a></li><li><a href="../../configuration-by-web-portal-category/sip/creating-a-sip-transport-server">Create a SIP transport server</a></li><li><a href="../rtp-no-anchoring/creating-profiles">Modify profile</a></li><li><a href="../../configuration-by-web-portal-category/network-access-points-nap">Allocate a SIP NAP</a></li></ul><p><br></p></td><td><ul><li><a href="../../configuration-by-web-portal-category/call-routing/creating-a-first-call-route">Create a first call route</a></li></ul></td></tr></tbody></table>

## NAP Configuration

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