ESN Sonar: what is it?

If you find the "ESN Sonar" software on your computer, ask yourself rightly what is behind it. In this practical tip, we explain what ESN Sonar is and whether you need the tool at all.

ESN Sonar: What is it good for?

• The ESN Sonar is a plugin for Internet telephony. It is only used in EA's Battlelog.
• The Battlelog is a kind of social platform on which you can exchange and network with friends and strangers via Battlefield 3 and 4. A voice chat is also available for communication.
• As soon as you use the voice chat in the Battlelog, the ESN Sonar is installed. The sonarhost.exe process will then be run on your computer.
• If you want to use the voice chat in the Battlelog, the ESN Sonar is mandatory. If you do not use the function, you can uninstall the tool via the Control Panel.

In the next practical tip, we will show you the 5 best Easter Eggs in Battlefield 4.