Yealink SIP-T40G Auto Provisioning Guide

Obtaining the Provisioning Server Address
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Press the OK soft key.
After the above configuration is completed, the IP phone will connect to the configured
provisioning server and perform auto provisioning during startup.
Plug and Play (PnP) Server
Yealink IP phones support obtaining the provisioning server address from the PnP server. The IP
phone broadcasts the PnP SUBSCRIBE message to obtain the provisioning server address during
startup. To use Plug and Play, make sure this feature is enabled.
To configure PnP via web user interface:
1. Click on Settings->Auto Provision.
2. Mark the On radio box in the PNP Active field.
3. Click Confirm to accept the change.
Any PnP server activated in the network responses with a SIP NOTIFY message, and an
address of the provisioning server is contained in the message body.
After the IP phone obtains the provisioning server address from the PNP server, it will connect
to the provisioning server and perform auto provisioning during startup.

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