Mxie Softphone
You may answer calls on your computer.
From the File menu > Bind to…
Select Bind to Softphone. Next.
Success window. Choose Finish.
Setup your Audio.
File menu > Preferences
Choose Audio Preferences.
Here you can set how you want to hear and speak through the softphone. Menus with examples below.
Play Call audio. Menu > Default (system speaker), attached speakers or even a headset.
Play Ring tone. Menu > Default (system speaker), attached speakers.
Microphone. Menu > Default, Microphone USB Camera, or a Headset