VOIP phone: 1.With LCD, dialing number, easy to use like general phone 2.Phone rings for all incoming calls, ring style and volume selectable 3.Caller ID function of skype calls 4.Dial skype contacts (speed dial number) and skypeout number by phone keypads 5.199 incoming calls and 199 dialed numbers 6.Echo cancellation, noise reduction, full duplex communication 7. PC-to-PC, PC-to-phone, Phone to Phone operation Hardware 8. No external power required 9. USB power LED indicator 10.Driver and sound card built-in Interface antique phone: Contemporary design with a vintage feel Caller ID, call waiting caller ID 75# Name and number caller ID history Caller ID review and delete Push button dialing in a rotary fashion plate 10# Memory New call indicator