Virtual private switched telephone network
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
May 11, 2004
Issued Date -
N/A
app pub date -
Nov 10, 2000
filing date -
Dec 11, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A system and method to provide secure access across the untrusted PSTN is described. The system and method utilizes telephony resources that can be initiated by a security policy defining actions to be taken based upon at least one attribute of the call, providing multi-tiered policy-based enforcement capabilities and visibility into security events.
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