This guide is designed to help you get the most out of your Star2Star experience. It provides a detailed explanation for using your phone and the features on your Star2Star system. Please identify your phone type from the guide in section 1. Star2Star Supported Phones. There are subtle differences in operation for each phone model and manufacturer. Star2Star currently supports phones from five different manufacturers, Polycom, Yealink, Grandstream, snom and Cisco. We also support a Softphone (S2S 3000) available for PCs and Apple Mac. Analog phones can be supported via an adapter. All are referenced throughout this guide. Many of the phones listed use soft keys. A soft key is a button, located alongside a display device which changes during the operation of the phone. Phone features are grouped together by manufacturer type. There is also a section that covers Star2Star System Features i.e. those features that are not specific to a phone type.