Yealink SIP-T2 SERIES Administrator's Manual page 402

Administrator's Guide for SIP-T2 Series/T19(P) E2/T4 Series/CP860 IP Phones
Description:
Configures the destination number of the busy forward for the IP phone.
Example:
forward.busy.target = 3602
Note: For Yealink IP phones (except SIP-T19(P) E2 and CP860), it works only if the
value of the parameter ―features.fwd_mode‖ is set to 0 (Phone).
Web User Interface:
Features->Forward&DND->Forward->Busy Forward->Target
Phone User Interface:
Menu->Features->Call Forward-> Busy Forward->Forward to
forward.busy.on_code
Description:
Configures the busy forward on code to activate the server-side busy forward
feature. The IP phone will send the busy forward on code and the pre-configured
destination number to the server when you activate busy forward feature on the IP
phone.
Example:
forward.busy.on_code = *74
Note: For Yealink IP phones (except SIP-T19(P) E2 and CP860), it works only if the
value of the parameter ―features.fwd_mode‖ is set to 0 (Phone).
Web User Interface:
Features->Forward&DND->Forward->Busy Forward->On Code
Phone User Interface:
Menu->Features->Call Forward->Busy Forward->On Code
forward.busy.off_code
Description:
Configures the busy forward off code to deactivate the server-side busy forward
feature. The IP phone will send the busy forward off code to the server when you
deactivate busy forward feature on the IP phone.
Example:
forward.busy.off_code = *75
Note: For Yealink IP phones (except SIP-T19(P) E2 and CP860), it works only if the
value of the parameter ―features.fwd_mode‖ is set to 0 (Phone).
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Parameters Permitted Values Default
String within 32
Blank
characters
String within 32
Blank
characters