Matches in Library of Congress for { ?s ?p Internet telephony Security measures.. }
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- 2004059935 subject "Internet telephony Security measures.".
- 2006040691 subject "Internet telephony Security measures.".
- 2007017689 subject "Internet telephony Security measures.".
- 2007297320 subject "Internet telephony Security measures.".
- 2007298838 subject "Internet telephony Security measures.".
- 2008036070 subject "Internet telephony Security measures.".
- 2008038559 subject "Internet telephony Security measures.".
- 2011926000 subject "Internet telephony Security measures.".
- 2012033611 subject "Internet telephony Security measures.".
- 2013044616 subject "Internet telephony Security measures.".