http://www.rxtx.org/ RXTX java serial comm
google javacomm
google windows phone dialer
http://www.phonedialerpro.com/ Phone Dialer Pro   TAPI   DTMF
google vb tapi
mgetty / vgetty sendfax  modem voice fax
jtapi
gjtapi http://sourceforge.net/projects/gjtapi
http://www.ctiforum.com/ CTI
http://tapifaq.pennypacker.org/index.html#FAQ My unofficial TAPI FAQ
http://vig.pearsoned.com/samplechapter/013080360X.pdf  APPLICATION PROGRAMMING WITH JTAPI