Telephonic communications – Plural exchange network or interconnection – Interexchange signalling
Reexamination Certificate
2002-07-19
2010-02-02
Addy, Thjuan K (Department: 2614)
Telephonic communications
Plural exchange network or interconnection
Interexchange signalling
C379S219000, C379S220010, C379S225000, C379S235000
Reexamination Certificate
active
07657019
ABSTRACT:
In a system having a switching device in a first location, and an extending device in a second location, a method of providing a communications link between (i) a first phone associated with the extending device and (ii) a second phone local to the second location and not associated with the extending device includes analyzing parameters associated with the first phone and the second phone so as to determine that the first phone and the second phone are local to the second location. The method further includes separating signaling data associated with the communications link from voice traffic associated with the communications link. The method further includes directing the signaling data through the switching device via an extension link between the switching device and the extending device, and directing the voice traffic between the first phone and the second phone.
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International Search Report PCT/US03/21557, Submitted on Jul. 19, 2002.
Lu Xinyu
Milne David Michael
Nguy Ky Xuong
Turner Todd Alan
Zhang Zhi
Addy Thjuan K
McDermott Will & Emery LLP
Tortel USA LLC
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