There are two main types of Pulmonary Atresia, distinguished by whether or not there is also a hole in the muscle wall (ventricular septum (VS)) that separates the right and left ventricles. This hole (not present in the diagram) is known as a Ventricular Septal Defect (VSD).
Skype is free, but Skype for Business will cost you. There are two basic plans available for smaller companies. âOnline Plan 1â costs $2 per user per month (with a yearly contract) and covers only the basics. Fundamentally you get very little over standard Skype with Online Plan 1, though.
Users can also exchange text and video messages, files and images, as well as create conference calls. Skype is available on Microsoft Windows, Mac, or Linux, as well as Android, Blackberry, iOS, and Windows Phone smartphones and tablets. Skype is based on a freemium model.