|For 3CX version 16 setup information please click here
|For 3CX version 12.5 setup information please click here
|For 3CX version 12 setup information please click here
|For 3CX version 6 setup information please click here
|For the older version please click here
3CX is a Windows based software PBX that offers a vast assortment of customizable options and settings. This setup guide is intended to show the most basic configuration of the 3CX Phone System version 15. For more advanced configurations and features you can combine the basics detailed in this guide along with the 3CX documentation.
Please note, Callcentric is not responsible for preventing unwanted physical or remote access to your IP PBX. If your IP PBX is compromised, you will be responsible for all associated damages.
Please be sure to read this guide regarding securing your IP PBX solution.
Help / Support
3CX Support Page
Here we will configure the 3CX IP PBX through the web interface to properly route both incoming and outgoing calls to/from Callcentric. The information presented in this guide is based on Version 15.0.56008.0 (FREE Edition) of the 3CX software running on a Windows Server 2008 R2 x64 installation. Please note, if you are running a different software version (or a different software edition), some of the menu options and settings may be different. This guide assumes that you have installed the 3CX IP PBX and also that you have administrative access to the 3CX administration web interface.
We recommend that you read each step through in its entirety before performing the action indicated in the step.
|Adding an extension
Log into the 3CX administrative interface and click on Extensions, from the left side of the page.
Click the Add button near the top of the loaded page. From the Add Extensions page, enter your Extension Number, Name, and a Password. Once you have entered your credentials for this extension, please click on the OK button to continue.
|Adding a SIP Trunk using the Callcentric template
Next click on SIP Trunks from the left side of the page. Click the Add SIP Trunk button that is located on the top of the loaded page.
After the Add SIP Trunk/VOIP Provider Wizard page loads, locate the option Select Country and specify US. Next, locate the option Select Provider in your Country and select Callcentric as the provider.
Locate the option Main Trunk No, and on the given field, specify 1777MYCCID OR 1777MYCCIDEXT, where 1777MYCCID is the 1777 number assigned to you by Callcentric and EXT is the three digit extension you are trying to register this UA to. Once completed, please click the OK button to continue.
|Configuring your SIP Trunk details
Next we will configure your PBX to use your Callcentric account credentials. As detailed in the picture below, please enter the following:
|Enter name for Trunk
|Registrar/Server/Gateway Hostname or IP
|sip.callcentric.net port: 5060
|sip.callcentric.net port: 5060
|Number of SIM Calls
|3 (Only users who are sure of what they are doing should change this value)
|Type of Authentication
|Authentication ID (aka SIP User ID)
|This is either the default extension 1777MYCCID OR 1777MYCCIDEXT, where 1777MYCCID is the 1777 number assigned to you by Callcentric and EXT is the three digit extension you are trying to register this UA to.
For example: 17770001234101 would register to extension 101 on account 17770001234.
You cannot register to your account using only the extension number.
|Enter your extension SIP Password here. Your extension SIP password is the password you created for the extension you are trying to use. You may edit the SIP password you wish to use in by logging into your My Callcentric account and clicking on the Extension menu link and then modifying the appropriate extension.
The last section on this page, labeled Routing of Calls to Main Number, allows you to configure an inbound route for your main number. You may send incoming calls to any pre-configured location such an extension, IVR, etc... In our example, we will select the extension that you created in the earlier steps of this guide. After you have completed this step, click the DIDs tab that is located near the top of the page.
If you've acquired phone numbers from us already, you may add those phone numbers into your system by clicking on the Add DID button.
*Note: If you've acquired the number 12125551000, please use 12125551000 in this field. Once you are done, click on the Options tab near the top of this page to continue configuring your 3CX System.
Within the Options section of your SIP trunk configuration page, as detailed in the picture below, please enter the following settings:
|Disable video calls
|PBX Delivers Audio
|Select which IP to use in 'Contact' (SIP) and 'Connection '(SDP) fields
|Select Local IP Address (Windows Default Route) if your server only has a single network interface
Select Specified IP if your server has multiple network interfaces, and specify the internal IP address of your server on the given field
Once you finish entering the settings detailed above, please click on the Inbound Parameters tab near the top of this page. Within the Inbound Parameters section of your SIP trunk's configuration page, locate the option labeled Configure how 3CX show identify calls coming from this trunk and check/enable this option. From the drop down menu, select To: User Part as indicated by the picture below:
Click on the OK button near the top of the page to save your newly defined SIP trunk.
|Adding an inbound rule
If you have phone numbers with us AND have already defined those numbers in the DIDs section of your SIP trunk configuration page; you can now create an inbound route for each number. In our example, we will be routing all inbound calls through our main number towards the extension we've created in the first step of this guide. To do so, locate the section labeled Routing of calls to Main Number and set the Destination for calls during office hours option to Extension and on the given drop down menu, select extension 100. You may do the same for the option Destination for calls outside office hours.
Once completed, please click Next to continue configuring your 3CX system.
|Adding an Outbound Rule
Next, you will be prompted to configure an Outbound Rule for the VoIP provider.
For our example, we've set our outbound rule name to to-Callcentric; in addition we are using 9 as a qualifier. By configuring 9 as the qualifier, you will need to dial 9 prior to every number dialed in order to send calls via Callcentric. To configure your PBX in this manner, please use the following settings:
|Calls to numbers starting with prefix
|Calls from extension(s)
|Calls to Numbers with a length of
On the Make outbound calls on section of your outbound routes page, please specify the following for Route 1:
To save your Outbound Rule and complete the setup of your 3CX System, please click the OK button.
Once you have successfully configured your 3CX phone system, you can click on the SIP trunk link that is located on the left side of the page to see if your PBX is properly registered.
If your 3CX System has properly registered to our servers, you should see a solid green circle next to the trunk that you've configured. If there are problems with the Registration of your system; please review the logs to see the exact reason why your 3CX System is not properly registering to our servers.
That's it! Your 3CX (version 15) system should now be properly configured to work with the Callcentric services.
|Configure and test UA (User Agent)
- Choose your desired UA
- Use the IP address or hostname for your 3CX phone system along with "100" (the extension created earlier which is the username) and the password for the 100 extension to connect to your 3CX phone system.
You can make test calls to 17771234567 (as you've specified 9 as your qualifier, please dial 917771234567), or if you are signed up for one of Callcentric's rate plans you can place a call to a traditional landline or mobile phone by dialing either:
1 + the area code and number for calls to the US
011 + the country code, area code, and number for calls worldwide (you may also use 00 instead of 011).