Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching
Reexamination Certificate
2006-09-26
2006-09-26
Pham, Brenda (Department: 2664)
Multiplex communications
Pathfinding or routing
Combined circuit switching and packet switching
C370S395500
Reexamination Certificate
active
07113504
ABSTRACT:
An auxiliary communication network is introduced into a virtual private network for passing signaling messages that present features not supported by the public, primary communication network portion of the virtual private network. Protocol converters are positioned within the virtual private network to intercept signaling messages, establish a connection through the auxiliary network, determine whether the intercepted messages present unsupported features, and, in which case, route corresponding feature requested through the auxiliary communication network. Preferably, the auxiliary network connection is established in a direction reverse to and in response to the primary network connection.
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Fuchan Joseph Lin et al., “A Methodology for Feature Interaction Detection in the AIN 0.1 Framwork,” IEEE Transactions on Software Engineering, vol. 24, No. 10, Oct. 1998, pp. 797-817.
Kingston Adrian
Neighbors Clay H.
Rabinovitch Mikhail
Rednor Fred R.
Volftsun Lev
Hickman Palermo & Truong & Becker LLP
Pham Brenda
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