... OEM logo, color, balance display, Pop Up window Preintall desktop SIP phone, OEM available, show logo, show balance1. USB Interface PnP ... call.5. Support Skype, UUcall, Alt, QQ, MSN, Talk, Yahoo, Sip Discount, X-Lite, Eyebeam, X-pro, Sipgate, IPhone, Vonage, UBIFONE ... 98/2000/XP operating system. preinstall driver desktop flash USB Sip phone/ OEM available