Aastra 480i Administrator's Manual page 70

BLA DA can be configured on a
global basis or on a per-line basis
on the IP phones using the Aastra
Web UI or the configuration files.
The following table shows the
number of lines that can be set to
BLA for each model phone.
IP Phone Model
480i
480i CT
9133i
Configuring BLA
You can configure BLA on a global
or per-line basis using the
configuration files or the Aastra
Web UI.
Global BLA
You configure BLA on a global
basis in the configuration files
using the following parameters:
sip mode
sip user name
sip bla number
You configure BLA on a global
basis in the Aastra Web UI using
the following fields at Advanced
Settings->Global SIP->Basic SIP
Settings:
• Line Mode
• Phone Number
• BLA Number
Per-Line BLA
You configure BLA on a per-line
basis in the configuration files
using the following parameters:
sip lineN mode
sip lineN username
sip lineN bla number
62 IP Phone SIP Admin Guide
Possible # of BLA
Lines
9
9
9
You configure BLA on a per-line
basis in the Aastra Web UI using
the following fields at Advanced
Settings->Line 1 thru Line 9: