IP voice call surveillance through use of non-dedicated IP...

Details IP voice call surveillance through use of non-dedicated IP... IP voice call surveillance through use of non-dedicated IP...

2002-11-19

2008-09-23

Duong, Frank (Department: 2616)

Multiplex communications

Pathfinding or routing

Combined circuit switching and packet switching

C370S395540, C370S401000, C379S032010, C379S035000

Reexamination Certificate

active

07428233

ABSTRACT:
Surveillance of IP telephony may be performed through the use of conventional telephone equipment, according to principles of the invention while preventing giving indication to the monitored phone by alerting the user of the monitoring phone to such surveillance use prior to pick up by an agent for engagement of the monitoring phone in response to the alert. Such alerts may assume many forms such as ringing, visual indicators, data readouts, activating ancillary equipment, various flags, etc. This alert prior to surveillance is distinct from alerts used for normal non-surveillance calls, which the monitoring phone is capable of receiving.

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