Yealink SIP-T54S Administrator's Manual page 489

Parameters
Phone User Interface:
Menu->Features->Call Forward->No Answer Forward->On Code
forward.no_answer.off_code
Description:
Configures the no answer forward off code to deactivate the server-side no answer forward
feature.
The IP phone will send the no answer forward off code to the server when you deactivate
no answer forward feature on the IP phone.
Example:
forward.no_answer.off_code = *77
Note: It works only if the value of the parameter "features.fwd.allow" is set to 1 (Enabled)
(except CP860 IP phones) and value of the parameter "features.fwd_mode" is set to 0
(Phone) (except SIP-T19(P) E2/CP860/CP920 IP phones).
Web User Interface:
Features->Forward&DND->Forward->No Answer Forward->Off Code
Phone User Interface:
Menu->Features->Call Forward->No Answer Forward->Off Code
features.fwd_diversion_enable
Description:
Enables or disables the IP phone to present the diversion information when an incoming
call is forwarded to your IP phone.
0-Disabled
1-Enabled
Web User Interface:
Features->General Information->Diversion/History-Info
Phone User Interface:
None
forward.international.enable
Description:
Enables or disables the IP phone to forward incoming calls to international numbers (the
prefix is 00).
0-Disabled
Configuring Basic Features
Permitted Values Default
String within 32
Blank
characters
0 or 1
0 or 1
1
1
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