Mitel 6867i Administrator's Manual page 428

Mitel 6800 Series SIP Phone Release 4.2.0 Administrator Guide
The BLF/List feature on the IP phones is specifically designed to support the BroadSoft
BroadWorks Rel 13 Busy Lamp Field feature. This feature allows the IP phone to subscribe to
a list of monitored users defined through the BroadWorks web portal.
For the 6867i, 6869i, and 6873i, when the monitored user is idle, the corresponding softkey is
green. When the monitored user's phone is ringing, the corresponding softkey turns yellow.
When the monitored user on an active call or is attempting to make a call, the corresponding
softkey turns red. Finally, when the monitored user's call is on hold, the corresponding softkey
displays the BLF/List hold icon. On the 6867i and 6869 the LEDs indicate the states as well
(i.e. solid for busy, off for idle, blinking for ringing and on hold).
On the 6865i IP hone, the LED lights next to each BLF programmable key illuminate steady to
indicate the monitored line is off-hook or unregistered. The LED goes off when the is idle. When
the monitored extension is ringing, the LED flashes.
Note: The BroadWorks BLF feature is not the same as the BroadWorks Shared Call
Appearance (SCA) feature and does not permit call control over the monitored extension.
You can configure a BLF/List key on the IP Phones using the configuration files or the Mitel
Web UI. You can also specify a BLF list URI that the phone uses to access the required BLF
list. You can specify a BLF List URI using the "list uri" parameter in the configuration files or
the BLF List URI field in the Mitel Web UI at the path Operation->Softkeys/Programmable
Keys/Expansion Module Keys->Services->BLF List URI. For more information about the "list
uri" parameter, see Appendix A, the section,
Example
A receptionist has an IP phone that subscribes to a list of extensions from the BroadWorks
Application Server.
On 6865i IP phone, the programmable key LEDs illuminate either flashing, solid, or turn off
depending on the state of the monitored extensions. On the 6867i, 6869i, and 6873i the BLF
states are indicated by the color of the softkey icon on screen (red for busy, yellow for ringing,
green for idle, and a yellow hold icon for hold) and for the 6867i and 6869i the LEDs indicate
the state as well (i.e. solid for busy, flashing for ringing and hold, and off for idle).
ASTERISK BLF CONFIGURATION
You can enable the BLF feature on Asterisk to enable monitoring for specific extensions. BLF
on Asterisk is possible through the "hint" extension parameter.
Add the following in the Asterisk extensions.conf file for each target extension being monitored.
For example:
exten -> 9995551212,hint,SIP/9995551212
Add the following in the Asterisk sip.conf file for each subscriber if it is not defined already.
For example:
[9995551212]
5-167
"BLF List URI Settings" on page 256.