| http://www.w3.org/ns/prov#value | - In this embodiment, in case of an incoming call on a line, it is determined for each of the groups and for each of three different kinds of lines, i.e., central office line (CL), hot line (HL) and branch line (SL), whether display is to be made on the incoming call line list A (with bit A=1 representing display and bit A=0 representing nondisplay), on the incoming call line list B (bit B=
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