Yealink SIP-T48G Administrator's Manual page 226

Administrator's Guide for SIP-T2_Series_T4_Series IP Phones
account.X.always_fwd.on_code
Description:
Configures the always forward on code to activate the server-side always forward
feature for account X when the call forward mode is configured as Custom. The IP
phone will send the always forward on code and the pre-configured destination
number to the server when you activate always forward feature for account X on the
IP phone.
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-T23P/G).
X ranges from 1 to 2 (for SIP-T21(P) E2).
Example:
account.1.always_fwd.on_code = *72
Web User Interface:
Features->Forward& DND->Forward->Always Forward->On Code
Phone User Interface:
Menu->Features->Call Forward->Always Forward->On Code
account.X.always_fwd.off_code
Description:
Configures the always forward off code to deactivate the server-side always
forward feature for account X when the call forward mode is configured as Custom.
The IP phone will send the always forward off code to the server when you
deactivate always forward feature for account X on the IP phone.
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-T23P/G).
X ranges from 1 to 2 (for SIP-T21(P) E2).
Example:
account.1.busy_fwd.off_code = *73
Web User Interface:
Features->Forward& DND->Forward->Always Forward ->Off Code
Phone User Interface:
212
Parameters Permitted Values
String within 32 characters
String within 32 characters
Default
Blank
Blank