400HD Series IP Phones
Administrator's Manual 274 Document #: LTRT-11950
A.1.1 Configuring BLF
Configuration of the BLF feature is unique when the selected application server is
BroadSoft's BroadWorks application platform.
Note: This section only applies to 430HD and 440HD phones.
To configure BLF in a BroadSoft environment:
1. Access the Services page (Configuration tab > Voice Over IP menu > Services).
Figure A-1: Web Interface – BLF Configuration in a BroadSoft Environment
2. From the 'Application Server Type' drop-down list, select BSFT.
3. Under BLF Support do this:
a. From the 'Activate' drop-down (voip/services/busy_lamp_field/enabled
parameter), select Enable.
b. In the 'BLF Subscription Period' field
(voip/services/busy_lamp_field/subscription_period parameter), enter the
interval between BLF and SIP SUBSCRIBE messages.
c. In the 'User Resource List' field (voip/services/busy_lamp_field/Uri parameter),
enter the resource list URI to which the phone can subscribe to in order to get the
BLF information from the application server.