Specifications

310HD, 320HD and 420HD IP Phones
A.3 Configuring BLF for Asterisk, Coral and Metaswitch
The configuration of the BLF feature is unique when the selected application server is
Asterisk, Coral, or Metaswitch.
 To configure BLF for Asterisk application server:
1. Access the Services page (Configuration tab > Voice Over IP menu > Services).
The figure’s callouts below correspond to the steps in this procedure:
Figure A-2: BLF Configuration for Application Server Type - Asterisk
2. From the ‘Application Server Type’ drop-down list, select one of the following:
• Asterisk
• Coral
• Metaswitch
3. In the BLF Support group, configure the following:
a. From the ‘Activate’ drop-down list (voip/services/busy_lamp_field/enabled
parameter), select Enable.
b. (Optional) In the ‘BLF Subscription Period’ field
(voip/services/busy_lamp_field/subscription_period parameter), enter the interval
between BLF and SIP SUBSCRIBE messages.
Note: The application server’s address is the same as the SIP Registrar
address defined by the parameter voip/signalling/sip/sip_registrar/addr
(see Section 17.2 on page 93).
4. Click Submit.
5. Define speed dial keys with the BLF feature (see Section 26 on page 175).
Administrator's Manual 270 Document #: LTRT-09910