Appeall No. 1998-1398 Page 3
Application No. 08/400,637
both the cordless and cellular telephone systems is costly and
inconvenient.
The inventive portable cellular cordless (PCC) unit and
cordless base station can be used to place and receive calls
in both a cordless telephone system and a cellular telephone
system. The invention automatically routes an incoming call
to the telephone system in which the PCC unit is found,
without inconveniencing the user of the unit. Additionally,
it automatically hands-off an in-process call between the
cordless and cellular telephone systems when the user moves
therebetween.
Claim 27, which is representative for our purposes,
follows: 27. A method of maintaining telephone
communications between a telephone device
having a telephone number and a cellular
cordless telephone on one of a cellular
telephone system and a cordless telephone
system, the cordless telephone system
having a cordless base station coupled to a
telephone landline having a landline
telephone number, the cellular cordless
telephone having a cellular telephone
number in the cellular telephone system,
the cellular cordless telephone having a
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