# Inbound

DIDWW SIP Trunks can be used with FreePBX for Inbound calls. The following guide will explain the steps necessary to
configure the FreePBX.

Note

This guide has been created with FreePBX Version 16.0.21.9.

## Getting Started

What you need to get started:

> - Access to [DIDWW self-service portal](https://my.didww.com/#/users/sign_in) to create [DIDWW Inbound SIP Trunk](../../voice/inbound-trunks/sip-trunks/how-to-guides/create-sip-trunk.html#user-panel-sipin-trunk) trunk and [assign](../../phone-numbers/my-numbers/how-to-guides/assign-voice-trunk.html#user-panel-assign-trunk) it to the preferred DID number.
> - Access to FreePBX Administration UI.

## Configuring Asterisk SIP Settings

**Step 1.** Click **Settings** on the top section, then select **Asterisk SIP Settings** from the dropdown menu.

**Step 2.** On the SIP Settings page, click on the **SIP Settings [chan\_pjsip]** tab and enter the fields (Fig. 1):

> - **Port to Listen On:** your preferred port

![../../_images/sip_fig1.jpg](../../_images/sip_fig1.jpg)


**Fig. 1.** SIP settings page, SIP Settings [chan\_pjsip] tab.

**Step 3.** Complete configuration by clicking the **Submit** button on the bottom right side. Click on **Apply Config**
located on the top right side.

## Configuring the Inbound Trunk

**Step 1.** On the top menu of the Admin interface click **Connectivity** and select **Trunks** from the dropdown menu.

**Step 2.** In the Trunks window, click on **Add Trunk**, and select **Add SIP (chan\_pjsip) Trunk** from the dropdown
menu (Fig. 1).

![../../_images/in_fig1.jpg](../../_images/in_fig1.jpg)


**Fig. 1.** Trunks page.

**Step 3.** Enter your preferred Trunk name in Add Trunk window, under the General tab (Fig. 2).

![../../_images/in_fig2.jpg](../../_images/in_fig2.jpg)


**Fig. 2.** Add Trunk page, General tab.

**Step 4.** Navigate to pjsip Settings, General Tab, and fill out these fields (Fig. 3):

> - **Authentication:** None (**Registration** field will change to None accordingly)
> - **SIP Server:** all [IP addresses](../../voice/inbound-trunks/sip-trunks/sip-connectivity-reference.html#service-did-sip) separated by comma
> - **SIP Server Port:** your preferred port
> - **Context:** from-pstn
> - **Transport:** 0.0.0.0-udp (instead of 0.0.0.0 FreePBX public IP can be displayed)

![../../_images/in_fig3.jpg](../../_images/in_fig3.jpg)


**Fig. 3.** Add Trunk page, pjsip Settings General tab.

Note

Optional trunk authorization can be configured by selecting **Inbound** in the FreePBX **Authentication** field and
**Receive** in the **Registration** field. In the DIDWW inbound SIP trunk, open the **Authorization** tab, enable
**Enable Authorization**, and enter the FreePBX trunk name as **Auth User** and the secret as **Auth Password**.

**Step 5.** Navigate to the Advanced tab of pjsip Settings and enter all [IP
addresses](../../voice/inbound-trunks/sip-trunks/sip-connectivity-reference.html#service-did-sip) separated by a comma
in Match (Permit) field (Fig. 4).

![../../_images/in_fig4.jpg](../../_images/in_fig4.jpg)


**Fig. 4.** Add Trunk page, pjsip Settings Advanced tab.

**Step 6.** Complete configuration by clicking the **Submit** button on the bottom right side.

## Configuring the Inbound Route

**Step 1.** Navigate to the **Connectivity** section in the top menu. Select the **Inbound Routes** from the dropdown
menu and a new page will pop up. Select **Add Inbound Route** (Fig. 1).

![../../_images/route_fig1.jpg](../../_images/route_fig1.jpg)


**Fig. 1.** Inbound Routes page.

**Step 2.** On the **Add Incoming Route** page, enter your preferred Description, DID number (optional if you want to
forward calls from a specific DID), and select Destination (Extension, Queues, Ring Groups, etc.) (Fig. 2).

Note

To set Extension, Queue or Ring Group as Destination, firstly it needs to be configured in their designated pages, which
can be located under the **Applications** section.

![../../_images/route_fig2.jpg](../../_images/route_fig2.jpg)


**Fig. 2.** New Inbound Route creation page.

**Step 3.** Complete the configuration by clicking the **Submit** button on the bottom right side. Click on **Apply
Config** located on the top right side.

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