Operating the Telephone with the Display
55
Multiline Telephone – Introduction
The following sections provide an overview of the concepts and features
specific to your telephone if the administrator has configured it as a multi-
line phone — a telephone that supports more than one line.
Most features are common to single-line and multiline telephones, but
some features function in a slightly different manner depending on the
telephone type. In this manual, these differences are explained in more de-
tail with the relevant function.
Lines and Line Keys
A line is the representation of a valid SIP address of record (AoR) and the
context for establishing SIP connections. Multiline telephones permit the
connection of more than one line. The term "line key" refers to lines that
are connected to more than telephone.
Although only one call at a time can be connected to the handset or loud-
speaker, several calls may be assigned to the multiline telephone. These
calls are either placed in a queue or signalled as incoming calls on the tele-
phone.
Line keys are used to select different lines. Lines should not be assigned
to the
Cancel
or
Shift
keys because these keys are required for other pur-
poses. This means that each multiline telephone can have
up to ten line
keys
.
You can use the LED associated with the line key to determine the state
of the line—for example, ringing, hold, consultation. The LED shines,
blinks, flickers or flickers weakly to indicate the relevant line status. For fur-
ther information on line key status indications, see
