The software makes use of the internet for transmitting telephone services to the receivers’ end worldwide. The computer-based softphone acts as a full-fledge telephone, and can offer a great deal of features including call forwarding, call transfer, call hold, and several other features. Softphones primarily use the sound card installed in the computer for its audio input and the output. The interface is quite common and resembles a standard phone with number keys that can be pressed via mouse, or simply dialled through the keyboard number pad for making calls. For listening and speaking purposes, a microphone and a headset would serve the purpose.
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