SwiftTalk PC-to-Phone Service also makes use of the same Phone Accounts/ Recharge Vouchers. No additional hardware besides your mutimedia Pc and internet access is required. Features of the PC-to-Phone Service - Outbound calling capabilities - Firewall port selection - Improved call quality - Improved security - Ability to call SIP addresses - Online payment and account information/management - Online phone book with call history and redial/speed dial - Ability to make PC-to-PC calls Download your PC-to-Phone-Dialer and start making calls now