| http://www.w3.org/ns/prov#value | - Now, the telephone number of the device is associated with the IP address so that incoming and outgoing calls can be effectively routed between the handset, the wired data network, and any other networks that are involved such as the PSTN. At block 416, a determination is made as to whether the handset 104 is placing an outgoing call or whether there is an incoming call directed to the handset 104
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