400HD Series IP Phones
Administrator's Manual 184 Document #: LTRT-11973
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:
• Use the table as reference.
Table 10-2: BLF in a BroadSoft Environment
Parameter Description
voip/services/application_server_type Change the default GENERIC to BSFT.
voip/services/busy_lamp_field/enabled
Configure 1 (enabled).
voip/services/busy_lamp_field/Uri
Enter the resource list URI to which the phone can
subscribe to in order to get the BLF information from
the application server.
voip/services/busy_lamp_field/subscription
_period
Enter the interval between BLF and SIP
SUBSCRIBE messages. Default: 3600 seconds. Up
to 86400 seconds can be configured.
voip/services/busy_lamp_field/application_
server/use_registrar
Enable this parameter for the Registrar's address to
be used as the Application Server's address (see
Section 5.1.2).
voip/services/busy_lamp_field/application_
server/addr
Disable the previous parameter and then for this
parameter configure the IP address or domain name
of the application server.