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Operational Features
41-001160-01, Rev 00, Release 2.3 5-211
Configuring Operational Features
The following table shows the number of lines that can be set to BLA for each
model phone.
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
IP Phone Model
Possible # of BLA
Lines
9143i 9
9480i 9
9480i CT 9
51i N/A
53i 9
55i 9
57i 9
57i CT 9