Yealink SIP-T40G Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
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defaults) takes effect only if the value of this parameter is set to 1 (Enabled). If “overwrite_mode” is set
to 1 in the boot file, the value of this parameter will be set to 1 (Enabled).
Permitted
Values
0-Disabled
1-Enabled, <MAC>-local.cfg file generates and personalized non-static settings configured via the
web or phone user interface will be kept after auto provisioning.
Default
0
Parameter
static.auto_provision.custom.sync <y0000000000xx>.cfg
Description
It enables or disables the phone to upload the <MAC>-local.cfg file to the server each time the file
updates, and to download the <MAC>-local.cfg file from the server during auto provisioning.
Note: It works only if “static.auto_provision.custom.protect” is set to 1 (Enabled). The upload/download
path is configured by the parameter “static.auto_provision.custom.sync.path”.
Permitted
Values
0-Disabled
1-Enabled
Default
0
Parameter
static.auto_provision.custom.sync.path <y0000000000xx>.cfg
Description
It configures the URL for uploading/downloading the <MAC>-local.cfg file.
If it is left blank, the phone will try to upload/download the <MAC>-local.cfg file to/from the provisioning
server.
Note: It works only if “static.auto_provision.custom.sync" is set to 1 (Enabled).
Permitted
Values
URL
Default
Blank
Parameter
static.auto_provision.custom.upload_method <y0000000000xx>.cfg
Description
It configures the way the phone uploads the <MAC>-local.cfg file, <MAC>-calllog.xml file or <MAC>-
contact.xml file to the provisioning server (for HTTP/HTTPS server only).
Permitted
Values
0-PUT
1-POST
Default
0
Auto Provisioning Flowchart for Keep User’s Personalized Configuration
Settings
The following shows an auto provisioning flowchart for Yealink phones when a user wishes to keep the user’s per-
sonalized configuration settings.

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