At&t Intellectual Property I, L.p.

John Lee

Herman H Lee

Howard Lang

John H Mayr

Christopher Daniel Vestal

Ker-Ren Tu

Jeff Boni

Byron Johnson

Mark Peter Nordberg

Chin-Wang Chao

Wenwen Ji

Aaron Blocker

Sheauling Tang

A method and system for monitoring a packet network by using call detail records (CDRs) are disclosed. The method first receives at least one call detail record (CDR) at a completion of a call from at least one voice gateway router that serviced said call and analyzes said at least one CDR. The method then monitors at least one performance parameter in accordance with said at least one CDR.

Method and apparatus for detecting a network impairment using call detail records

A method and system for enabling a network service provider to monitor a packet network by using call detail records (CDRs) are disclosed. The method first detects a termination of a call by at least one voice gateway router and generates a call detail record (CDR) at said termination of said call by said at least one voice gateway router. The method then forwards said call detail record by said at least one voice gateway router to at least one CDR collecting and analysis server.

Method and apparatus for monitoring a packet network

A method and apparatus for providing asynchronous alarm correlation in packet networks are disclosed. For example, the method receives a trigger, and performs an asynchronous correlation of at least one root cause alarm with at least one symptom alarm.

Method and apparatus for asynchronous alarm correlation

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Bartlett, IL, United States of America

John Lee