Yealink SIP-T54S Administrator's Manual page 482

Administrator's Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP Phones
Time(0~120s)
Phone User Interface:
Menu->Features->Call Forward->Account X->No Answer Forward->After Ring Time
account.X.timeout_fwd.on_code
Description:
Configures the no answer forward on code to activate the server-side no answer forward
feature for account X.
The IP phone will send the no answer forward on code and the pre-configured destination
number (configured by the parameter "account.X.timeout_fwd.target") to the server when
you activate no answer forward feature for account X on the IP phone.
X ranges from 1 to 16 (for SIP-T54S/T48G/T48S/T46G/T46S/T29G)
X ranges from 1 to 12 (for SIP-T52S/T42G/T42S)
X ranges from 1 to 6 (for SIP-T41P/T41S/T27P/T27G)
X ranges from 1 to 3 (for SIP-T40P/T40G/T23P/T23G)
X ranges from 1 to 2 (for SIP-T21(P) E2)
Example:
account.1.timeout_fwd.on_code = *76
Note: It works only if the value of the parameter "features.fwd.allow" is set to 1 (Enabled)
and value of the parameter "features.fwd_mode" is set to 1 (Custom). It is not applicable to
SIP-T19(P) E2/CP860/CP920 IP phones.
Web User Interface:
Features->Forward&DND->Forward->Account X->No Answer Forward->On Code
Phone User Interface:
Menu->Features->Call Forward->Account X->No Answer Forward->On Code
account.X.timeout_fwd.off_code
Description:
Configures the no answer forward off code to deactivate the server-side no answer forward
feature for account X.
The IP phone will send the no answer forward off code to the server when you deactivate
no answer forward feature for account X on the IP phone.
X ranges from 1 to 16 (for SIP-T54S/T48G/T48S/T46G/T46S/T29G)
X ranges from 1 to 12 (for SIP-T52S/T42G/T42S)
X ranges from 1 to 6 (for SIP-T41P/T41S/T27P/T27G)
456
Parameters Permitted Values Default
String within 32
Blank
characters
String within 32
Blank
characters