If you prefer to have a professional record your greeting, your voicemail service provider may offer this service for a reasonable fee. Voicemail Office, a telephony company serving both the United States and Canada, offers voiceover service with both their standard voicemail and virtual PBX service.
Before you can use Skype Voicemail, you have to start your setup and record the Voicemail greeting that your callers will hear: Start Skype and choose Tools→Options→Calls→Voicemail from the main menu. The Voicemail window pops up. You can purchase Skype Voicemail separately, or you can get Voicemail for free with a Skype subscription.

Before you record a professional voicemail greeting, you may want to consider the type of people who might call your home or business. That way, you can think about the information these callers might need before you compose your greeting. Most callers are familiar with how to leave a voice message, so try to avoid giving them instructions. Some things you may want to include in your greeting might be your full name, title, name of your company, and an alternate method of reaching you. If you plan to be unavailable for some time, it can be a good idea to tell your callers when you will return and give them the name and phone number of another individual to call in the event they need immediate assistance. A private voicemail box enables a person to receive telephone messages when the phone cannot be answered.
One of the rules you should remember is to speak a bit slowly and clearly so that your callers are able to understand more easily what is being said.