- EarthLink SIPshare is based on an idea by David Beckemeyer, EarthLink,
Inc.  The Java implementation of SIPshare was written by Mark S. Petrovic,
EarthLink, Inc.

- We thank M. Ranganathan and all the SIP workers at NIST for
helpful discussions, and for NIST SIP itself.  NIST SIP made this
implementation of SIPshare possible at the time it was conceived.  The NIST
SIP implementation is in the public domain.

   http://snad.ncsl.nist.gov/proj/iptel/

- Per the Apache Software Foundation license, we gratefully acknowledge
that "This product includes software developed by the Apache Software
Foundation (http://www.apache.org/).".  This covers use of the Log4J
logging utilities, the Xerces XML parser, and the Jakarta Regexp regular
expression parser.

- We also acknowledge use of Jason Hunter's and Brett McLaughlin's JDOM
package for XML parsing in Java.

   http://www.jdom.org/

- EarthLink SIPshare uses a simple file transfer protocol based on FSP,
described here 

   http://fsp.sourceforge.net/  

We started with Radim Kolar's implementation, found here

   http://sourceforge.net/project/showfiles.php?group_id=93841

and modified it to fit our needs; it is therefore not "pure" FSP, but
"FSP-like".  We acknowledge Mr. Kolar's work, and per the FSP license
agreement, his original copyright statement remains with the Kolar source
code files, with our modification notes.  Source code written from scratch
and that calls the Radim Kolar FSP API, are copyrighted EarthLink, Inc.,
with a BSD-style license.  The associated source code is all contained
in fsp-0.13.jar in the SIPshare lib subdirectory.

--
Mark S. Petrovic
EarthLink, Inc.
September 15, 2004