Yealink SIP-T27G Manual

Using Enhanced DSS Keys on Yealink IP Phones
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 Call failed – The outgoing call encounters a failure.
 Ring back - There is an outgoing call on the phone. And the phone is in the ringback state.
 Transfer ring back - There is a call being transferred to another phone. And the phone is
in the ringback state.
 Hold – The call is placed on hold on the phone.
 Held – The call is held.
 Conference – The phone sets up a conference call.
 Dial tone – You can hear a dial tone. But there are no numbers entered.
 Dialing – The phone is on the dialing screen. That is, the entered numbers are not dialed
out.
To configure the soft keys using configuration files:
1. Add/Edit soft key parameters in the configuration file (e.g., features.cfg).
The following table lists the information of parameters:
Parameters
Permitted Values
Default
features.enhanced_dss_keys.enable
0 or 1
0
Description:
It enables or disables the Enhanced DSS Keys (EDK) feature.
0-Disabled
1-Enabled
softkey.X.enable
(X ranges from 1 to 10)
0 or 1
0
Description:
It enables or disables the custom soft key X.
0-Disabled
1-Enabled
Note: It works only if the value of the parameter “features.enhanced_dss_keys.enable”
is set to 1 (Enabled).
softkey.X.label
(X ranges from 1 to 10)
String
Blank
Description:
It configures the text displayed on the soft key label.
Note: It works only if the values of the parameters
“features.enhanced_dss_keys.enable” and “softkey.X.enable” are set to 1 (Enabled).

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