3CX - Software PBX for Windows 

Unify your communications with 3CX Phone System for Windows – an IP Phone System that completely replaces your proprietary PBX, supports standard SIP soft/hard phones, VoIP services and traditional PSTN phone lines. 3CX Phone System is far less expensive than a traditional PBX and can reduce call costs substantially by using a VoIP service provider. Its web-based administration makes phone system management easy. 3CX Phone System eliminates the phone wiring network and allows users to easily work remotely.

3CX offers both a free and paid versions. Thee free version only limits call concurrency to 2 simultaneous calls while the paid version supports up to 1024 simultaneous calls.

Download: Download 3CX 



Configuration Instructions:

3CX PBX v12

Inside the User Settings Wizard there are 3 Main sections: General Settings, Phone Settings,and Finalize. The User Settings Wizard takes about 20 minutes to setup, most of which is the Database being created.

    1. To begin select the Language.
    2. Next Create New PBX
    3. Next select the number of digits for your extensions. The default number is 3, but can be changed to range between 2 and 5.
    4. Next enter your Mail Server (this will be your email information).
    5. Lastly in the General Settings create a Administrator username and password.

Phone Settings

    1. To begin create an extension
    2. Next choose your Region and International Dialing Code.
    3. Next you will have the ability to choose the region where international calls can be made.
    4. Next Choose your VoIP Provider, this may be completed at a later time.
    5. Lastly Save the configuration, then the database will be created (may take some time)
    • After the database has been created login with your User Name and Password.
    • To begin we will add a new VoIP Provider, this is done by Add >VoIP Provider.

Enter the follwing Information in the VoIP Provider Field

    1. Name of Provider: IPComms
    2. Country: Generic
    3. Provider: Generic VoIP Provider.

After entering the information above select Next

    • Next you will enter the SIP server hostname or IP: this will also be entered into the Outbound proxy hostname or IP field

Next enter the Account Details

    1. External Number: SIP User (NPA-NXX-XXXX)
    2. Authentication ID (aka SIP User ID): SIP Username.
    3. Authentication Password: Password assigned in Provisioning Letter.
    4. 3 Way Authentication ID: SIP Username .
    5. Maximum simultaneous calls: 2 (Free Version).

Office Hours

    1. Here you will configure where calls will go during office hours

Next create an Outbound Call Rule

    1. Create a Rule Name
    2. Here you also have the ability to create routes and strip digits. This rule may be completed at a later time.

Now we will Add our DID, this is done by Inbound Rules->Add DID.

    1. Create a Inbound Rule Name, this will appear on inbound calls
    2. DID/DDI number/mask: NPA-NXX-XXXX This will be your DID
    3. Select the Provider (IPComms) in the Available Ports field
    4. Lastly choose the location for the DID to route

Creating and Registering an Extension

    1. After creating the extension's User Information go to the 3CXPhone Tab, and inside the Configure default phone to use in 3CXPhone for Windows select Inbuilt Softphone.
    2. After selecting apply you will see the Extension Created as well as the Proxy Server, Extension Number, Authentication ID, and the Authentication Password.


Click here for a complete manual of the 3CX Phone System

3CX, 3CX Phone System for Windows and the 3CX logo are trademarks of 3CX Ltd.