TY - BOOK AU - Dang,Luan AU - Jennings,Cullen AU - Kelly,David TI - Practical VoIP using VOCAL SN - 0596000782 AV - TK5105.8865 .D35 2002 U1 - 621.382/12 21 PY - 2002/// CY - Beijing, Sebastopol, CA PB - O'Reilly KW - Internet telephony N1 - Includes index UR - http://www.loc.gov/catdir/enhancements/fy0715/2002023323-d.html UR - http://www.loc.gov/catdir/enhancements/fy0912/2002023323-b.html UR - http://www.loc.gov/catdir/enhancements/fy1009/2002023323-t.html ER -