Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching
Reexamination Certificate
2007-01-02
2007-01-02
To, Doris H. (Department: 2616)
Multiplex communications
Pathfinding or routing
Combined circuit switching and packet switching
C370S401000, C370S465000, C375S213000
Reexamination Certificate
active
10106421
ABSTRACT:
An external or secondary messaging system is coupled to a ToL system for providing a temporary storage cache where messages may be left when elements of ToL system cannot be reached do to outage events. The secondary messaging system is located outside the area of the ToL system that may be subject to the outage event and hides the outage event from the caller (i.e., the caller leaves a message on a messaging system he or she believes the normal messaging system of the party called).
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patent: 6363430 (2002-03-01), Thomas
patent: 6553116 (2003-04-01), Vander Meiden
patent: 6721399 (2004-04-01), Beyda
patent: 6842448 (2005-01-01), Norris et al.
patent: 6917676 (2005-07-01), Yoshida et al.
patent: 6959072 (2005-10-01), Lee
patent: 6999431 (2006-02-01), Rines
Hyun Soon D.
Siemens Communications, Inc. - Boca Raton
To Doris H.
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