A general voicemail greeting is what callers will be greeted with if you are unable to answer the phone at work. It is the everyday greeting, used as the default, unless you have set up a temporary greeting, such as an away message while you're on vacation, or a special message during a holiday.
You can change your voice tone from the yellow box. Then open up Skype and go to Tools > Options and select Audio Settings. In the microphone settings drop down menu select Microphone (Screaming Bee Audio) That’s it. now you can call your friends with your new voice.

This article is about the second main type of greeting – the voicemail greeting. All businesses should have professional voicemail greetings at the company level (i.e. your general business number), department level (e.g. customer service), and employee level, where applicable. It’s important that each of these voicemail greetings align with the brand and personality of your company to ensure that every caller has a consistent experience. Let’s dive in!
2. Hello, you have reached the office of [your name]; I will be out of my office starting on [date] and will be returning on [date]. You can call me when I return or leave a brief message. If this is an emergency I can be reached on my cell, which is [your number].