Desktop Call is a free downloadable software program based on SoftalkAsia's patented phone-to-phone long distance technology. Only a PC running the application on the desktop and a telephone is required. As with all our products, this is not a VoIP service, you talk over your telephone, not your PC. Therefore, no special hardware is required. Making calls is ultra-fast, since you do not have to wait for Web pages to load. As a result, Desktop Call is ideal for Users with slow Internet connections. LAN users with either Internet or firewall restrictions may use Desktop Call which can be configured for use with a proxy server. The built-in directory is integrated with Microsoft Outlook allowing you to import phone numbers stored in Contacts. As an added convenience, you can actually dial a number directly from Outlook.