Appeal No. 2002-1997 Page 2
Application No. 08/828,549
The use of a faulty modem by the ISP, however, can impede such a connection.
Because the ISP may be unaware of the fault until it receives complaints from its users,
the faulty modem can be in use for a long time. (Id. at 3.) Furthermore, it may remain
in use until repaired or replaced. (Spec. at 2.)
In contrast, the invention uses a telephone exchange, such as a private branch
exchange ("PBX"), to connect a remote computer to an Intranet without an ISP.
(Appeal Br. at 3.) More specifically, the remote computer 48 is connected via a public
switched telephone network ("PSTN") 12 to a PBX 10. An incoming call from the
computer 48 is routed via the PBX's switch core 40 and network connector 44 to an
Intranet 14.
A further understanding of the invention can be achieved by reading the following
claim.
18. Method of connecting a computer to a computer network via a
telephone exchange comprising the steps:
receiving, in the telephone exchange, data signals sent from the
computer, wherein the data signals are sent from the computer over a
public switched telephone network;
converting, by a signal processing means in a network connection
device, the signal structure of the data signals to data packets having a
signal structure suitable for data communication;
supplying these data packets to the computer network;
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