Yealink SIP-T40G Administrator's Guide

Call Features
390
Default
Blank
Supported
Devices
All phones except T19(P) E2 and CP920
Web UI
Features > Forward& DND > DND > AccountX > Off Code
Phone UI
Menu > Features > DND > AccountX > Off Code
[1]
X is the account ID. For T57W/T54W/T48U/T48S/T48G/T46U/T46S/T46G/T29G, X=1-16; for
T53W/T53/T43U/T42U/T42G/T42S, X=1-12; for T41P/T41S/T27G, X=1-6; for T40P/T40G/T23P/T23G, X=1-3; for T21
(P) E2, X=1-2.
DND Synchronization for Server-side Configuration
DND synchronization feature provides the capability to synchronize the status of the DND features between the IP
phone and the server.
If the DND is activated in phone mode, the DND status changing locally will be synchronized to all registered
accounts on the server; but if the DND status of a specific account is changed on the server, the DND status locally
will be changed.
The following table lists the parameters you can use to configure DND synchronization for server-side.
Parameter
features.feature_key_sync.enable <y0000000000xx>.cfg
Description
It enables or disables to synchronize the feature status between the IP phone and the server.
Permitted
Values
0-Disabled
1-Enabled, the phone sends a SUBSCRIBE message with event “as-feature-event”.
Default
0
Parameter
account.X.feature_key_sync.enable
[1]
<MAC>.cfg
Description
It enables or disables to synchronize the feature status between the IP phone and the server for
account X.
Note: The value configured by this parameter takes precedence over that configured by the parameter
"features.feature_key_sync.enable".
Permitted
Values
0-Disabled
1-Enabled, the phone to send a SUBSCRIBE message with event “as-feature-event”.
Default
0
Supported
Devices
All phones except T48G, T46G, T42G, T41P, T29G and CP920
Parameter
features.dnd.feature_key_sync.enable <y0000000000xx>.cfg
Description
It enables or disables the DND feature synchronization.
Note: It works only if “features.feature_key_sync.enable” is set to 1 (Enabled).
Permitted
Values
0-Disabled
1-Enabled, server-based DND is enabled. Server and local phone DND are synchronized.
Default
1
Supported
Devices
All phones except CP920
Parameter
account.X.dnd.feature_key_sync.enable
[1]
<MAC>.cfg

Yealink SIP-T40G Specifications

General

Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Wall mountable	Yes
Wi-Fi	No
Security algorithms	AES, HTTPS, SSL/TLS
Networking standards	IEEE 802.3af
Ethernet LAN interface type	Gigabit Ethernet
Supported network protocols	FTP, TFTP, HTTP, HTTPS
Voice codecs	G.711, G.711a, G.711u, G.722, G.726, G.729ab
RJ-11 ports quantity	1
Ethernet LAN (RJ-45) ports	2
AC adapter input voltage	100 - 240 V
AC adapter output current	0.6 A
AC adapter output voltage	5 V
Power consumption (typical)	1.6 W
Certification	CE, FCC, ISO 9001
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 90 %
Volume control	Digital
Display diagonal	2.3 \
Display resolution	132 x 64 pixels
Lines quantity	3 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	3
Number of handles included	1 pc(s)

Weight and Dimensions

Depth	175 mm
Width	212 mm
Height	54 mm