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KPhoneIS User Manual: Introduction

KphoneSI (kpsi) is a SIP (Session Initiation Protocol) based user agent (UA) for Linux, allowing you to initiate VoIP (Voice over IP) connections over the Internet, send Instant Messages, subscribe your friends' presence information and start other applications of your choice.

It is licensed under the GNU General Public License (GPL). KPhone is written in C++ and uses Qt. KPhone establishes Sessions via the Internet.

The main features are:

The following media types are supported: The possible Audio Codecs are:

About external applications. The external applications give you the possibility to start your point to point communication application using  INVITE.  In the CVS you find an example, a simple instant messaging  application (kphoneIM). It comes with more documentation about this concept.
Other good examples for such applications are the "MBONE-Tools" as vic and wbd (Whiteboard). As they (kphoneIM does!) do not support symmetric signalling, NAT-Traversal is not possible with these tools.

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