The present invention relates to a communication environment where calls
are established with a single mobile terminal through either a cellular
network or a packet network via a local wireless adaptor, which is
capable of wirelessly communicating with the mobile terminal. As such,
the mobile terminal may facilitate traditional cellular calls via the
wireless network, or packet-based calls via the local wireless adaptor.
When the mobile terminal is involved in a call and within a communication
zone of the local wireless adaptor, the packet-based call is facilitated
via the local wireless adaptor. As the mobile terminal approaches the
outer limits of the communication zone, the call to the mobile terminal
is transferred to another connection which is established through the
cellular network. As such, the call may continue via the cellular network
when local wireless communications are no longer available or not desired
by the user.