Aastra Telecom SIP 57I - Manual (Page 359)

Operational Features
41-001160-00, Release 2.1, Rev 04 5-149
Configuring Operational Features
Operational IP Phone Features
For per-line configuration of BLA:
Click on Advanced Settings->Line N (1-9).
In the "Line Mode" field, select the BLA option.
2 In the "Phone Number" field, enter the phone number of the IP phone.
3 For global configuration of BLA:
In the "BLA Number" field, enter the Bridge Line Appearance (BLA) number to be shared across all
IP phones.
For per-line configuration of BLA:
In the "BLA Number" field, enter the Bridge Line Appearance (BLA) number to be shared on a
specific line.
4 Click to save your changes.
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