Voicemail will collect your messages when you are not available to take the call.
Whether you are busy, unavailable or offline with advanced missed call handing you can choose to have your call sent to voicemail after playing a custom greeting*. Even better when a forwarded call fails, it can be sent to to voicemail too.
All voicemails are delivered via email to your inbox, so you can pick them up for playback wherever you are. You also send them to a number of email addresses. You will need speakers on your PC to playback voicemails.
* Some features are not available for free account