Install nmap if you don't already have it on your Linux computer. Run "sudo apt-get install nmap" on Ubuntu, or "sudo dnf ...

You can change your IP address from the network settings controls menu on a Windows PC, Mac, and even your phone.

Office phones have come a long way in a relatively short time. With the introduction of Internet Protocol phones, new features make those devices more akin to computers than simple phone systems.

VoIP (Voice over Internet Protocol) is a system for transmitting voice calls over the internet, rather than a phone line.