Don’t confuse voice mail with automatic attendant systems. Automatic attendant, where the computer actually answers the phone, is the single worst business invention ever. Human answers. Human determines if the person you’re calling is in by ringing their phone and monitoring the response. If not in, human returns and says, “Mr. Jones is not in. Would you like me to help you personally, take your message personally or would you like to leave a detailed message on his or her voice mail?” You faint from the shock.
On the app, click on the "Sound" icon at the lower left part of the tool and select "Microphone." Then, open your voicemail service on your phone and play the voice message. The online audio recorder then clicks the "Record" button on the audio recorder while the voicemail is playing. If you are recording using an external mic, make sure that your phone is on the loudspeaker and pointed at the mic.

Pro tip: Only use first names. People of authority call each other by their first name only. Using the contact’s full name or saying Mr./Ms. [last name] can make you seem less confident and important than the person you’re calling.
I don’t know about you, but I’m shocked every time I listen to a voicemail message left for me by sales reps, prospects and even clients. They are filled with ‘um’s’ and ‘ah’s’, they ramble on and on, they leave no compelling reason for me to call back, and they almost always leave their number so fast that I have to listen to it two, three, sometimes four times to make it out!