Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching
Reexamination Certificate
2004-08-02
2009-08-04
Harper, Kevin C (Department: 2416)
Multiplex communications
Pathfinding or routing
Combined circuit switching and packet switching
C370S338000
Reexamination Certificate
active
07570630
ABSTRACT:
A method and apparatus are disclosed for causing a telephone device to selectively originate a call as a circuit-switched call or a packet-switched call, depending on the telephone number dialed by a user of the telephone device. By way of example, the telephone device can determine that the dialed telephone number is an international telephone number and can responsively originate the call as a packet-switched call, or the telephone device can determine that the dialed telephone number is not an international telephone number and can responsively originate the call as a circuit-switched call.
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Paczkowski Lyle W.
Phillips Jeffrey F.
Harper Kevin C
Sprint Spectrum L.P.
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