Aastra Telecom 480i CT (Release 1.4) - Manual (Page 14)

8 / IP Phone User Guide
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Depending on how the phone has
been configured, the maximum
number of total line/call
appearances that can be set up is 8
or 9 (4 line/call appearance as hard
keys and 4 or 5 as softkeys). If all
line/call appearances have been
set up for the same number, a total
of 9 lines can be configured. If all
line/call appearances have been
set up between two different
numbers, a total of 8 lines can be
configured. This means that when
all line/call appearances are in use,
1 call is connected while the rest
are on hold. No further outgoing
or incoming calls can be made
until one of the line/call
appearances becomes available.
In active states, such as ringing,
conference, connected, etc.,
all softkeys disappear except
softkeys that have been set up
as line/call appearances, and any
context dependent softkeys
required for the active state, such
as the Drop softkey in the
connected state. Typically, context
dependent softkeys appear in the
top left position and all line/call
appearance softkeys appear in the
remaining positions.
Note: In some situations, such as
during a conference call, the line/
call appearance softkeys may
overwrite some of the context
dependent soft keys. In this
case, instead of the Previous
and Next softkeys, up or down
icons,
5 or 2 , will appear on
the display. By using the r
and s navigation keys, you
can access the same functionality
as the Previous and Next
softkeys.
Softkeys as Customized
Speeddials
You can set up custom softkeys as
speeddials. Speeddial softkeys can
dial a star code for a feature on the
system or a phone number or a set
of digits. A customized label
displays inside the phone’s display
for each softkey. If you press a
custom softkey, the phone goes
off-hook and dials the star code or
the number set up for this softkey.
Softkeys as Customized
"Do not Disturb"
You can set a softkey to perform a
"Do not Disturb" (DND) function.
If DND is set on a softkey, the key
switches DND ON and OFF. If the
phone shares a line with other
phones, only the phone that has
DND configured is affected.
The second line on the screen of
the IP phone shows when DND is
configured. When a call comes in
on the line, the caller hears a busy
signal or recorded message,
depending on the server
configuration.
Softkeys as Customized
Busy Lamp Field (BLF)
You can set a softkey to Busy Lamp
Field (BLF).
The BLF feature on the IP phones
allows a specific extension to be
monitored for state changes. BLF
monitors the status (busy or idle)
of extensions on the IP phone.
Note: The BLF setting is applicable to
the Asterisk server only.
Example
A Supervisor configures BLFs on
his phone for monitoring the status
of a worker’s phone use (busy or
idle). When the worker picks up
his phone to make a call, a busy
indicator on the Supervisor’s
phone shows that the worker’s phone is in use and busy.