Yealink SIP-T27G Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
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Other Phones:
Network > Basic > IPv4 Config > Static IP Address > Default Gateway
Phone UI
Color Screen Phones:
Menu > Advanced (default password: admin) > Network > WAN Port > IPv4 > Static IP > Default Gate-
way
Black-and-white Screen Phones:
Menu > Settings > Advanced Settings (default password: admin) > Network > WAN Port > IPv4 >
Static IPv4 Client > Default Gateway
Parameter
static.network.static_dns_enable
[1]
<y0000000000xx>.cfg
Description
It triggers the static DNS feature to on or off for the wired network.
Note: It works only if “static.network.internet_port.type” is set to 0 (DHCP).
Permitted
Values
0-Off, the phone will use the IPv4 DNS obtained from DHCP.
1-On, the phone will use manually configured static IPv4 DNS.
Default
0
Web UI
Network > Basic > IPv4 Config > Static DNS
Phone UI
Color Screen Phones:
Menu > Advanced (default password: admin) > Network > WAN Port > IPv4 > Type(DHCP) > Static
DNS
Black-and-white Screen Phones:
Menu > Settings > Advanced Settings (default password: admin) > Network > WAN Port > IPv4 >
DHCP IPv4 Client > Static DNS
Parameter
static.network.primary_dns
[1]
<y0000000000xx>.cfg
Description
It configures the primary IPv4 DNS server for the wired network.
Note: It works only if “static.network.ip_address_mode” is set to 0 (IPv4) or 2 (IPv4 & IPv6). In the
DHCP environment, you need to make sure “static.network.static_dns_enable" is set to 1 (On).
Permitted
Values
IPv4 Address
Default
Blank
Web UI
T57W/T54W/T53W/T53/T48U/T46U/T43U/T42U:
Network > Basic > IPv4 Config > Static DNS > Primary DNS
Other Phones:
Network > Basic > IPv4 Config > Static IP Address > Primary DNS
Phone UI
Color Screen Phones:
Menu > Advanced (default password: admin) > Network > WAN Port > IPv4 > Static IP > Pri.DNS
In the DHCP environment:
Menu > Advanced (default password: admin) > Network > WAN Port > IPv4 > DHCP > Static DNS
(Enabled) > Pri.DNS
Black-and-white Screen Phones:
Menu > Settings > Advanced Settings (default password: admin) > Network > WAN Port > IPv4 >
Static IPv4 Client > Pri.DNS
In the DHCP environment:

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