Jia Yu Jan Newmarch Michael Geisler JINI/J2EE Bridge for Large-scale IP Phone Services. 302-309 2003 conf/apsec/2003 APSEC http://csdl.computer.org/comp/proceedings/apsec/2003/2011/00/20110302abs.htm db/conf/apsec/apsec2003.html#YuNG03