Having a dedicated emergency contact will help make sure anything important that comes up is taken care of. Another option is directing callers to a separate answering service.
As probably know, a professional voicemail greeting can make or break leaving a great impression. However, it all starts with your voicemail script.

Our voicemail prompts and recordings allow you to guide callers through the phone system in a number of ways. Important information can be imparted while your caller is on hold, such as queue times and caller number. You can even up your marketing game by using this opportunity to build interest about products and services you offer.
Microsoft continues to ride roughshod over people who have been users - at not inconsiderable expense - for YEARS. Skype itself is NOT free to use (even leaving aside my paid phone number) because it wastes hours and causes anxiety and frustration, each of which has a cost. Skype was never perfect but it had some degree of honesty before it was swallowed up by Microsoft.