International Business Machines Corporation

Netcordia, Inc.

Frank Michael Pittelli

John David Irish

Stephen P Morgan

Michael D Varga

Terrance C Slattery

A path diagnosis method and system for a VoIP network includes obtaining information on VoIP calls from the VoIP network using either Call Data Records (CDRs) or active testing, or both. A VoIP call that has a problem is determined between a source and a destination device on the VoIP network, based on the obtained information. Likely call paths between the source and destination devices on the VoIP network are determined. The VoIP network is queried to obtain network data with respect to all devices that exist between the source and destination devices along the likely call paths. A path diagnostics chart is displayed that shows the devices that exist between the source and destination devices along the likely call paths, along with any call issues that exist for each of the devices.

Voice over IP analysis system and method

A system for authentication to support secure data transfer includes a protocol wherein a certificate payload, an ID payload, and a signature payload all respectively contain at least two certificates, IDs, and signatures, concatenated together. The certificates are generated by different certificate authorities (CA) that have no trust relationship with each other. One certificate can be granted to a person and another to a particular host computer intended to be used by the person, so that for secure data transfer to take place, both a certified user and a certified host computer must be involved.

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Edgewater, MD, United States of America

Frank Michael Pittelli