Voice over IP crash course /
Shepard, Steven.
Voice over IP crash course / Steve Shepard. - New York : McGraw-Hill, 2005. - xix, 386 p. : ill. ; 23 cm.
Includes index.
0072262419
Internet telephony.
TCP--IP (Computer network protocol)
Voice over IP crash course / Steve Shepard. - New York : McGraw-Hill, 2005. - xix, 386 p. : ill. ; 23 cm.
Includes index.
0072262419
Internet telephony.
TCP--IP (Computer network protocol)