Yealink SIP-T27G Auto Provisioning Guide

Triggering the IP Phone to Perform Auto Provisioning
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in CFG Files or Administrator Guide for your phone on Yealink Technical Support. This method
requires server support.
The following figure shows the message flow:
Auto Provisioning via Activation Code
In addition to the updating modes introduced above, users can trigger IP phones to perform
auto provisioning by dialing an activation code. To use this method, the activation code and the
provisioning server URL need to be pre-configured on the IP phones. This method works only if
there is no registered account on the IP phone. It is usually used for IP phones distributed by
retail sales. It has the advantage that the IP phones do not need to be handled (e.g., registering
account) before sending them to end-users.

Yealink SIP-T27G Specifications

General

Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Black, Gold
Wall mountable	Yes
Display diagonal	3.66 \
Display resolution	240 x 120 pixels
RJ-9 ports quantity	2
USB 2.0 ports quantity	1
Voice codecs	CNG, G.711, G.722, G.723.1, G.726, G.729, G.729ab, VAD, iLBC
Dual-Tone Multi-Frequency (DTMF) modes	SIP info
Lines quantity	8 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	6
Bluetooth	-
Security algorithms	AES, MD5
Networking standards	IEEE 802.1Q, IEEE 802.1p, IEEE 802.1x, IEEE 802.3af
Ethernet LAN interface type	Gigabit Ethernet
Volume control	Digital
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 95 %
Cables included	LAN (RJ-45)
Number of handles included	1 pc(s)
Harmonized System (HS) code	85171800

Weight and Dimensions

Depth	210 mm
Width	265 mm
Height	170.5 mm