Private branch exchange built using an ATM Network

Details Private branch exchange built using an ATM Network Private branch exchange built using an ATM Network

2005-04-26

2005-04-26

Hsu, Alpus H. (Department: 2665)

Multiplex communications

Pathfinding or routing

Combined circuit switching and packet switching

C370S356000, C370S389000, C370S465000

Reexamination Certificate

active

06885661

ABSTRACT:
The present invention guarantees that voice data (and other information types) will switch within a predetermined time period. Systems and methods consistent with the present invention accomplish this guarantee by, among other things, establishing permanent virtual paths between each network element, guaranteeing each voice line a slot in a packet in each frame, employing both octet switching and packet switching, synchronizing the operation of the network elements to a reference clock, and providing several levels of network redundancy.

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