45
C h a p t e r 6
Interacting with the Phone
6.1
Call Appearances
The ZIP4x4 has four call appearances. Each call appearance allows you to have a separate or
joined call.
This type of phone is different from phones that have been in common use for the past 100 years.
On those older phones a physical pair (or two pairs) of wires carry a single voice call. A phone that
can accommodate two voice calls connects to two such circuits, with each circuit being referred to
as a line. A switch on the phone selects between the lines (and therefore with whom you are
talking). A phone that has four lines has four such sets of circuits and can allow four simultaneous
calls.
The ZIP4x4 has a single circuit to connect to the switch. All calls take place over this same circuit,
or line. Dedicated software and hardware inside the phone and the switch permit you to have
four simultaneous conversations. These are referred to as four calls, not four lines.
6.2
Using the Keypad and the Buttons
The term
buttons
refers to the switches that are identified by the writing on a label below them,
The term
keypad
refers to the switches that have writing on them, shown in figure 6-2.
Figure 6-1
View of Buttons on ZIP4x4
Summary of Contents for ZIP4x4
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