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Browse Prior Art Database

LOGGING PACKETS IN OMNILINK SYSTEMS

IP.com Disclosure Number: IPCOM000008095D
Original Publication Date: 1997-Mar-01
Included in the Prior Art Database: 2002-May-17
Document File: 2 page(s) / 88K

Publishing Venue

Motorola

Related People

Liz Cassidy: AUTHOR [+2]

Abstract

The creation of Omnilink systems has created a need for event reconstruction spanning multiple zones. This is due to the inclusion of multiple users within such systems. Detailed billing information is required.

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MOTOROLA Technical Developments

LOGGING PACKETS IN OMNILINK SYSTEMS

by Liz Cassidy and Steppen Yi

PROBLEM

  The creation of Omnilink systems has created a need for event reconstruction spanning multiple zones. This is due to the inclusion of multiple users within such systems. Detailed billing information is required.

PRIOR ART

  Prior art systems have been limited to single zones, therefore time stamping could be used to dif- ferentiate events within that single zone. Alternatively, sequencing numbers could be assigned to calls within the zone. The time stamping solution is inadequate in Omnilink systems because there are multiple zones spanning time zones which would make sequencing of events throughout the entire systems prohibitively ditlicult. Furthermore, the sequencing solution is also inadequate by itself in that the existence of multiple zones would create ambiguity.

  It is also theoretically possible to perform time stamping at a central location within a multi-zone system. However, such a solution would have to account for the possibility of widely varying delays occurring in transmission of event information between the various zones and the central location. This would be extremely difftcult to implement.

  Yet another solution is to synchronize each of the zones to a known source, such as Greenwich Mean Time. However, the potential for clock drift- ing between the zones would make this method, at best, difftcult to maintain.

RESOLUTION

  The present invention crates a logging packet for each significant event which occurs during a call within any of the multiple zones, e.g., start of call, end of...