Method and apparatus for providing a software adaption layer...

Details Method and apparatus for providing a software adaption layer... Method and apparatus for providing a software adaption layer...

2006-07-18

2006-07-18

Pezzlo, John (Department: 2616)

Multiplex communications

Pathfinding or routing

Through a circuit switch

C370S360000, C709S230000

Reexamination Certificate

active

07079531

ABSTRACT:
A software adaptation of a Time Division Multiplexing (TDM) telecommunications line and trunk group control sub-system is described. The adaptation permits this legacy software to run under various operating systems and provide essential functions to a packet based switching system. This method of reuse permits continual use of proven and dependable software features to operate under new packet based topologies. The legacy software runs in a new soft-switch environment with minimal redesign. Timer and interrupt functions are altered to comply with off-the-shelf operating systems. Error recovery and restart operations are isolated to remove awareness from the operating system but still permit the legacy software to recover in conventional manner.

REFERENCES:
patent: 6760324 (2004-07-01), Scott et al.
patent: 2002/0102999 (2002-08-01), Maggenti et al.
patent: 2002/0120760 (2002-08-01), Kimchi et al.

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