Yealink SIP-T48G Administrator's Manual page 353

Configuring Advanced Features
Parameters Permitted Values Default
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).
Web User Interface:
Account->Advanced->Subscribe MWI To Voice Mail
Phone User Interface:
None
String within 99
voice_mail.number.X Blank
characters
Description:
Configures the voice mail number for account X.
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:
voice_mail.number.1 = 1234
Web User Interface:
Account->Advanced->Voice Mail
Phone User Interface:
None
account.X.display_mwi.enable 0 or 1 1
Description:
Enables or disables the IP phone to support audio and visual MWI when receiving
new voice messages.
0-Disabled
1-Enabled
Note: It always works at the time of Unsolicited MWI; but it works only if the
parameters "account.X.subscribe_mwi_to_vm" and "account.X.subscribe_mwi" are
set to 1 (Enabled) and "voice_mail.number.X" is configured at the time of solicited
MWI.
X ranges from 1 to 16 (for SIP-T48G/T46G/T29G).
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