Voice over IP security /
Park, Patrick, 1971-
Voice over IP security / VoIP security Patrick Park. - Indianapolis, Ind. : Cisco Press, c2009. - xix, 361 p. : ill. ; 23 cm. - Cisco Press networking technology series. IP communications .
Includes bibliographical references and index.
1587054698 (pbk.) 9781587054693 (pbk.)
Internet telephony--Security measures.
Voice over IP security / VoIP security Patrick Park. - Indianapolis, Ind. : Cisco Press, c2009. - xix, 361 p. : ill. ; 23 cm. - Cisco Press networking technology series. IP communications .
Includes bibliographical references and index.
1587054698 (pbk.) 9781587054693 (pbk.)
Internet telephony--Security measures.