Yealink SIP-T2 SERIES Administrator's Manual page 600

Administrator's Guide for SIP-T2 Series/T19(P) E2/T4 Series/CP860 IP Phones
Procedure
BLA can be configured using the configuration files or locally.
Configuration File
Local
Details of Configuration Parameters:
account.X.shared_line
Description:
Configures the registration line type.
0-Disabled
1-Shared Call Appearance
3-Draft BLA (not applicable to SIP VP-T49G IP phones)
X ranges from 1 to 16 (for SIP-T48G/T46G/T29G)
X ranges from 1 to 12 (for SIP-T42G)
X ranges from 1 to 6 (for SIP-T41P/T27P)
X ranges from 1 to 3 (for SIP-T40P/T23P/T23G)
578
<MAC>.cfg
Web User Interface
Parameters
Configure the registration line
type.
Parameters:
account.X.shared_line
Configure the BLA number.
Parameters:
account.X.bla_number
Configure the period of BLA
subscription.
Parameters:
account.X.bla_subscribe_period
Configure the registration line
type.
Configure the BLA number.
Configure the period of BLA
subscription.
Navigate to:
http://<phoneIPAddress>/servlet
?p=account-adv&q=load&acc=
0
Permitted Values
0, 1 or 3
Default
0