Description: Xeleven is the program for calling your friends, relatives and acquaintances all over the world. Xeleven has the simple user-friendly management interface which is similar to the interface of popular programs such as ICQ, Skype, MSN, NetMeeting. Xeleven is based on perspective VoIP (Voice over IP) technology SIP-Session Initiation Protocol. It's very easy! Download, install the program and connect up headphones and a microphone or headset to your computer. That's all. No registration is required! Now you can already call to your friends on a computer that has installed Xeleven.