A softphone is a piece of software that turns your desktop, laptop, or main workstation computer into a phone. In a nutshell, it allows you to make calls over the internet.The computer-based softphone acts as a full-fledged phone, offering various features, which include call forwarding, call transfer, call hold, and several other.
Softphones primarily use the sound card installed in the computer for its audio input and output. The interface is quite standard and resembles a common phone dialer with number keys that can be pressed via mouse or simply dialed through the keyboard number pad for making calls.
A microphone and a headset would serve as a means of listening and speaking. You can also make use of the IP handset to make and receive calls through the internet.
VoIP mobile apps also come with a softphone, and they work exactly the same as your cell dialer.