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Operational Features
5-28 41-001129-00 Rev 09, Release 1.4.1
IP Phone Administrator Guide
Operational Features
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]
Subscribecontext=sip
BroadSoft BLF Configuration
You can enable the BLF feature on BroadSoft BroadWorks Rel 13 or higher
through the BroadWorks Web Portal. Each user must have the Busy Lamp Field
service enabled for their user. The user must add each desired extension to the
“Monitored Users List” on the Busy Lamp Field service page and also enter in a
list name for the monitored users BLF list on the same page.
Changes to the “Monitored Users List” are dynamic and the Aastra IP phones are
automatically updated without requiring a restart.
Reference
For sample BLF configurations, see Appendix E, “Sample BLF Softkey Settings.”