Using the 480i Phone
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 snavigation keys, you can access the same functionality as the Previous and Next softkeys.
Softkeys as Customized
Speeddials
You can set custom softkeys as speeddials on the 480i phone. 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
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
480i IP Phone User Guide 11