You can use the Internet for a variety of things. One of the things you can do online is communicate with others. Whether through e-mail, messaging or phone calls, communication brings the world closer together. If you want to be able to call someone using an unknown number, also do this online. There are several free online calling companies that allow you to make calls from your computer without providing a recognisable phone number.
Navigate to Calling America, or Goober.com. Download the program by clicking on "Create Goober Account." With this account, you receive a free trial. Use this to place a call for free from an unknown number. Input your information into the installation boxes and then click "Place call" to make a free call.
Go to FreeCall.com on the Internet. Click on "Free Download" to download the program to your computer. Then, click on "Call" to make a call for free. If you want to try out the service first, click on "Make a Free Trial Call" first.
Go to VoipBuster.com and then click "Download" to download their program for free onto your computer. Once you've downloaded the program, click "Make Calls" to make free calls. This process lists you as an unknown caller.