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Yealink SIP-T40G Administrator's Guide

Yealink SIP-T40G
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Advanced Features
484
Values 1-Enabled
Default
0
Parameter
account.X.sub_fail_retry_interval
[1]
<MAC>.cfg
Description
It configures the interval (in seconds) for the phone to retry to re-subscribe when subscription fails.
Permitted
Values
Integer from 0 to 3600
Default
30
Parameter
account.X.subscribe_mwi_to_vm
[1]
<MAC>.cfg
Description
It enables or disables the phone to subscribe to the message waiting indicator for the voice mail num-
ber.
Note: It works only if “account.X.subscribe_mwi is set to 1 (Enabled) and “voice_mail.number.X” is
configured.
Permitted
Values
0-Disabled, the phone will subscribe to 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.
Permitted
Values
String within 99 characters
Default
Blank
Web UI
Account > Advanced > Voice Mail
Phone UI
Menu > Message > Voice Mail > Set Voice Mail Code
Parameter
account.X.display_mwi.enable
[1]
<MAC>.cfg
Description
It enables or disables the MWI alert to indicate that you have an unread voice mail message.
Permitted
Values
0-Disabled
1-Enabled
Default
1
Web UI
Account > Advanced > Voice Mail Display
Parameter
features.voice_mail_alert.enable <y0000000000xx>.cfg
Description
It enables or disables the phone to pop up the message when receiving the same amount of new
voicemails.
Permitted
Values
0-Disabled
1-Enabled
Default
0
Parameter
features.voice_mail_key_lamp_field.enable <y0000000000xx>.cfg
Description
It enables or disables the phone to subscribe to the message waiting indicator for the voice mail num-
ber when configuring a Voice Mail dsskey.

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Yealink SIP-T40G Specifications

General IconGeneral
MountingDesk/Wall
Handset typeWired handset
Product typeIP Phone
Product colorBlack
Wall mountableYes
Wi-FiNo
Security algorithmsAES, HTTPS, SSL/TLS
Networking standardsIEEE 802.3af
Ethernet LAN interface typeGigabit Ethernet
Supported network protocolsFTP, TFTP, HTTP, HTTPS
Voice codecsG.711, G.711a, G.711u, G.722, G.726, G.729ab
RJ-11 ports quantity1
Ethernet LAN (RJ-45) ports2
AC adapter input voltage100 - 240 V
AC adapter output current0.6 A
AC adapter output voltage5 V
Power consumption (typical)1.6 W
CertificationCE, FCC, ISO 9001
Operating temperature (T-T)-10 - 50 °C
Operating relative humidity (H-H)10 - 90 %
Volume controlDigital
Display diagonal2.3 \
Display resolution132 x 64 pixels
Lines quantity3 lines
Phonebook capacity1000 entries
Number of VoIP accounts3
Number of handles included1 pc(s)
Weight and Dimensions IconWeight and Dimensions
Depth175 mm
Width212 mm
Height54 mm

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