Appeal No. 1998-1491 Page 2
Application No. 08/654,502
landline. Because of their limited range, however, cordless
telephones are not suitable for use in vehicles.
Vehicular communications are typically achieved by means
of radio telephone systems, the most prevalent being cellular
telephone systems. A cellular telephone allows a user to
place and receive telephone calls throughout a large,
metropolitan area. A cellular telephone call, however, can
cost as much as seven times a cordless telephone call.
The inventive cellular cordless telephone can be used to
place and receive both cellular telephone calls and cordless
telephone calls. Claim 46, which is representative for our
purposes, follows:
46. A radiotelephone comprising first and
second communication circuits, each communication
circuit providing speech communication according to
first and second communication protocols,
respectively, the second communication circuit
configured as a plug-in accessory which couples via
a connector to the first communication circuit.
The references relied on in rejecting the claims follow:
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