Yealink T40G Administrator's Guide

Advanced Features
507
Permitted
Values
0-Disabled, the IP phone will subscribe the message waiting indicator to a specific
account.
1-Enabled
Default
0
Web UI
Account->Advanced->Subscribe MWI To Voice Mail
Parameter
voice_mail.number.X
[1]
<MAC>.cfg
Description
It configures the voice mail number.
Example:
voice_mail.number.1 = 1234
Permitted
Values
String within 99 characters
Default
Blank
Web UI
Account->Advanced->Voice Mail
Phone UI
Menu->Message->Voice Mail->Set Voice Mail->AccountX Code
Parameter
account.X.display_mwi.enable
[1]
<MAC>.cfg
Description
It enables or disables the MWI alert to indicate that you have unread voicemail
message.
Note: It always works at the time of Unsolicited MWI; at the time of solicited MWI,
MWI subscription feature should be configured in advance.
Permitted
Values
0-Disabled,
1-Enabled, the View Voice Mail menu displays a message summary with counts. If
“features.voice_mail_tone_enable”, “features.voice_mail_popup.enable” and
“phone_setting.mail_power_led_flash_enable” are set to 1 (Enabled), users receive a
visual and audio alert when they have new voicemail messages available on their
phone.
Default
1
Web UI
Account->Advanced->Voice Mail Display
[1]
X is the account ID. For T54S/T48S/T48G/T46S/T46G/T29G, X=1-16; for T52S/T42G/T42S, X=1-12; for
T41P/T41S/T27P/T27G, X=1-6; for T40P/T40G/T23P/T23G, X=1-3; for T21(P) E2, X=1-2; for T19(P) E2, X=1.
Short Message Service (SMS)
Yealink IP phones support short message service (SMS). It allows users to send and receive text message
on support server.
By default, SMS is enabled. You can use SMS at the path: Menu->Message->Text Message. You can
also disable SMS.

Yealink T40G Specifications

General

SIP Accounts	3
Wall Mountable	Yes
Opus Codec	No
Display	2.3 inch 132x64-pixel graphical LCD
Network	Dual-port Gigabit Ethernet
PoE	Yes
Headset Support	Yes, RJ9 port
Power Adapter	Optional
Voice Codecs	G.722, G.711(A/μ), G.729AB, G.726
Local Phonebook	1000 entries