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Qtopia Non-Trolltech Licensed Software

This document is merely a guide. Full details of licensing is given in the license documents.

Qtopia references some code that is not original code produced by Trolltech, but rather under specific licenses from the original authors. This page lists the licenses used for that code, names the authors, and links to the points where it is used.

Trolltech gratefully acknowledges these and other contributions to Qtopia. We recommend that all users of Qtopia also acknowledge these contributions, and quote all these license statements in an appendix to the documentation.


KPhone is a SIP (Session Initiation Protocol) user agent for Linux, with which you can initiate VoIP (Voice over IP) connections over the Internet, send Instant Messages and subscribe your friends' presence information. Read INSTALL for installation instructions, and CHANGES for the latest additions in functionality and COPYING for the General Public License (GPL).

More information about Wirlab available at http://www.wirlab.net/

Note: "This program is released under the GPL with the additional exemption that compiling, linking, and/or using OpenSSL is allowed."


The OpenSSL library is an open source implementation of the SSL and TLS protocols. OpenSSL was formerly known as SSLeay.

The OpenSSL toolkit exists under a dual license, i.e. both the conditions of the OpenSSL License and the original SSLeay license apply to the toolkit. Both licenses are BSD-style Open Source licenses. More information about OpenSSL can be found at http://www.openssl.org


GSM is a codec optimised for recording human speech, and is used by the MediaRecorder.

The GSM code was extracted from verison 12.17.3 of the Sox sound tools. The author of Sox is Chris Bagwell. Sox is distributed under the terms of the GNU General Public License. More information can be found at http://spies.com/Sox/


LibMAD is an integer-based MPEG audio decoder that supports all three MPEG Layers, and is used by the MediaPlayer.

The libmad library is distributed under the terms of the GNU General Public License, Version 2. The primary copyright holder is Robert Leslie. More information about the Mad library can be found at http://www.mars.org/home/rob/proj/mpeg/


Libflash renders Flash movies for the MediaPlayer.

The libflash library is distributed under the terms of the GNU General Public License. The primary copyright holders are Olivier Debon and Fabrice Bellard. More information about the Flash library can be found at http://www.swift-tools.com/Flash.


QJpUnicodeConv and the classes that use it (QEucJisCodec, QJisCodec, QSJisCodec) are the copyright of Serika Kurusugawa. These classes provide conversion between different Japanese encodings and Unicode, and are used by the Qtopia server.
QObex links with OpenOBEX, which is an open source implementation of the Object Exchange (OBEX) protocol. This protocol is essentially a typed file-exchange protocol. OpenOBEX is distributed under the terms of the GNU Lesser General Public License (LGPL). Primary copyright holders of OpenOBEX include Dag Brattli and Pontus Fuchs. QObex is used by Qtopia for infra-red communications.

The version of OpenOBEX included here includes some functions of GLIB, which is distributed under the terms of the GNU Library General Public License (LGPL). The primary copyright holders of GLIB are Peter Mattis, Spencer Kimball and Josh MacDonald. More information about OpenOBEX can be found at http://openobex.sourceforge.net/


QRsync links with librsync, which provides fast incremental file transfer in the style of rsync. Qtopia and QtopiaDesktop use QRsync for PIM data synchronization.

Librsync is distributed under the terms of the GNU Lesser General Public License. The primary copyright holder and and author is Martin Pool. The primary copyright holder and author for rsync is Andrew Tridgell. More information about librsync can be found at http://librsync.sourceforge.net


The FreeType library provides a clean-room implementation of TrueType font rendering.

FreeType is distributed under one of two licenses, either the GNU General Public License, or the FreeType License. More information about FreeType can be found at http://freetype.sourceforge.net/


The atd program is based on Russ Nelson's lightweight At daemon. It is distributed under the terms of the GNU General Public License. The atd program is based on Russ Nelson's lightweight At daemon. The At daemon will run a program at a specified time. It is distributed under the terms of the GNU General Public License.
The avformat and avcodec code was extracted from the FFMPEG project. FFMPEG is a large project that allows recording, conversion and streaming of audio and video data. avformat and avcodec are used by the MediaPlayer.The author and primary copyright holder is Fabrice Bellard. The FFMPEG project is distributed under the GNU Lesser General Public License. More information can be found at http://ffmpeg.sourceforge.net The libavformat and libavcodec directories are taken from the 05/07/2005 CVS snapshot.


The original Norwegian translation of Qtopia was contributed by Frank Paul Silye <fpsilye@broadpark.no> and licensed for redistribution.


ALL MATERIALS, INFORMATION AND SOFTWARE INCLUDED IN OR AVAILABLE THROUGH OR IN CONNECTION WITH THIS DOCUMENT (THE "CONTENT") ARE PROVIDED "AS IS". THE CONTENT IS PROVIDED WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, TROLLTECH ON BEHALF OF ITSELF AND ITS LICENSORS AND SUPPLIERS, DOES NOT WARRANT THAT THE CONTENT IS ACCURATE, RELIABLE OR CORRECT; THAT ANY DEFECTS OR ERRORS WILL BE CORRECTED; OR THAT THE CONTENT IS FREE OF VIRUSES OR OTHER HARMFUL COMPONENTS. YOUR USE OF THE CONTENT IS SOLELY AT YOUR RISK.


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Qtopia version 2.2.0