3-Way call detection system and method

Telephonic communications – Call or terminal access alarm or control – Fraud or improper use mitigating or indication

Reexamination Certificate

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C379S406140, C379S207010

Reexamination Certificate

active

06895086

ABSTRACT:
Disclosed herein is a three-way call detection system and method for detecting the addition of a third party to a pre-existing telephonic connection between a first party and a second party. The system comprises a meter for measuring the amplitude of a line voltage of a telephonic connection between a first party and a second party.

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