Yealink SIP-T48G Administrator's Manual page 236

Administrator's Guide for SIP-T2_Series_T4_Series IP Phones
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
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
1-Enabled
Web User Interface:
Features->General Information->Fwd International
Phone User Interface:
Menu->Settings->Advanced Settings (default password: admin)->FWD
International
222
Parameters Permitted Values
String within 32 characters
0 or 1
0 or 1
Default
Blank
1
1