---
title: "Configure Connector for 3CX"
slug: "configure-3cx-pbx-integration"
updated: 2025-06-17T20:18:29Z
published: 2025-06-17T20:18:29Z
canonical: "kb.connecttoteams.com/configure-3cx-pbx-integration"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://kb.connecttoteams.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Configure Connector for 3CX

3CX is a popular single tenant PBX. Many 3CX distributors package use the ConnecttoTeams Connector to link 3CX either in a PBX or a SIP Trunk configuration. This article describes the information you need from 3CX to configure a PBX user in Microsoft Teams using ConnecttoTeams.

Once you have completed [setup of Direct Routing](/v1/docs/set-up-direct-routing) and are ready for Step 6 in the [Step-by-Step Guide](/v1/docs/pbx-connector-installation-step-by-step-guide) you will need to populate the 3CX PBX information as follows:

## Configure PBX Settings

![](https://cdn.elev.io/file/uploads/lWNkjTie1mEAGuhwq3R2SqTFcax3a6BIA1xEV-d9OvM/GEeSiI50M_0LVy5nFHqPvg4iXqvz9sCUYuoWbafheLc/1652485738231-lqY.png)

## 

| **3CX Setting** | ConnecttoTeams **PBX** |
| --- | --- |
| Hostname* | PBX SIP Domain |
| UDP* | PBX Outbound Transport Type |
| SIP Proxy (or Hostname again, if no proxy) | PBX SIP Domain Proxy |
| 5060 (unless using a non-standard port)* | PBX SIP Domain Proxy Port |
| Alternate Domain Name (or hostname again is no alternate domain) | Domain Alias |
| Feature Code used to check voicemail | Voicemail Feature Code |

* Hostname, Transport Type and Port are required fields.

## Configure PBX User

To set up a 3CX User you will need to populate certain information from 3CX into ConnecttoTeams on the Add User page as seen below:

**![](blob:https://teammatetechnology.atlassian.net/9d6a4583-a0bd-42af-a0f3-8c546f525a4b#media-blob-url=true&id=738d43bb-71ef-4dc5-a5d5-4e5ba51275ff&collection=contentId-529268738&contextId=529268738&mimeType=image%2Fpng&name=image-20200824-133725.png&size=33805&width=1063&height=597)**

**![](https://cdn.us.document360.io/312e5ae5-e3c1-465d-8e37-f253a7ba8eee/Images/Documentation/image-1750191498688.png?sv=2026-02-06&spr=https&st=2026-10-29T17%3A41%3A55Z&se=2026-10-29T18%3A41%3A55Z&sr=c&sp=r&sig=B9s6nRdgM7qzmJi0QPbNoR0SKxD42up0N7LA5pXXLIA%3D)**

| **3CX** | ConnecttoTeams **User** |
| --- | --- |
| Extension | Phone Number |
| SIP User ID | SIP UserID |
| Authentication>ID | SIP Authentication ID |
| Authentication>password | SIP Password |

**![](blob:https://teammatetechnology.atlassian.net/bbc4672d-db5b-4506-8867-eaabfd39826e#media-blob-url=true&id=ba92e80e-d0bd-46ca-8d99-c171f3e9c3bc&collection=contentId-529268738&contextId=529268738&mimeType=image%2Fpng&name=image-20200824-134719.png&size=2488&width=537&height=88)**

  

**![](blob:https://teammatetechnology.atlassian.net/bcc61585-6f65-47df-9f2f-9d41f97f1d12#media-blob-url=true&id=293be203-3fdf-4704-be1c-183404c5359d&collection=contentId-529268738&contextId=529268738&mimeType=image%2Fpng&name=image-20200824-135552.png&size=32877&width=1080&height=547)**