KPhone


KPhone is a SIP User Agent for Linux. It implements the functionality of a VoIP Softphone but is not restricted to this. Licensed under the GNU General Public License, KPhone is free software. KPhone is written in C++ and uses Qt.

Application

KPhone establishes Sessions via the Internet and so enables communication between the endpoints. Audio is the "session type" used most frequently, but others are possible.
The main features:
The following media types for sessions are supported:
KPhone uses the media type application to launch communicating applications on both ends of the call. The user manual discusses the supported formats and how to install such an external application. A good example is KPhoneIM, a simple point-to-point IM application, other examples are the MICE Tools of the project MBONE such as vic and wbd.
KPhone itself supports STUN for NAT traversal. It may be used for the building audio solution and for KPhoneIM immediately, other external applications may need some adaptation to make use of it.. The MICE Tools do not support symmetric signalling, so NAT-Traversal is not possible with these tools.

History

KPhone was originally developed by Billy Biggs. KPhone was presented to the public at the 2nd SIP bakeoff at pulver.
Further KPhone development was done at Wirlab from 2001 to 2005. Wirlab's first Kphone release was published March, 13th 2002.
Since autumn 2005 KPhone is located in the Sourceforge.
The project hasn't been updated on Sourceforge since 2013-04-15.