If you'd like to take advantage of this free feature, you'll need to enable it on the Skype website. Open your web browser and sign in to Skype with your username and password:
Click on your username (top-right corner), go to Manage features > Voice messages:
Toggle Enable voice messaging and never miss a call again and Email alerts switches On:
Voice Messaging is now enabled on your account.
Customize Voice Messaging Preferences in Skype
The next step is to enable and configure Voice messaging in the Skype app. Open Skype on your desktop, click on Tools > Options > Calls > Voice Messages:
Tick the Receive unanswered calls as a voice message checkbox and configure your settings:
Create a Voice Message Greeting in Skype
Click on the red Record button to record your custom greeting message:
Once done, click on the Play button to listen to the message.
Allow Callers to Leave Voice Message in Skype
If you'd like to allow other users to leave a voice message, go to the Start recording a voice message if section, edit the value (in seconds) for I do not answer within [ ] seconds, and tick the I am already in a call and I reject an incoming call checkboxes:
Once everything is set up correctly, click on Save to apply your new settings.