Yealink SIP-T27G Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
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Description
It enables or disables the call waiting feature.
Permitted
Values
0-Disabled, a new incoming call is automatically rejected by the phone with a busy message during a
call.
1-Enabled, the phone screen will present a new incoming call during a call.
Default
1
Web UI
Features > General Information > Call Waiting
Phone UI
Menu > Features > Call Waiting > Call Waiting
Parameter
call_waiting.tone <y0000000000xx>.cfg
Description
It enables or disables the phone to play the call waiting tone when the phone receives an incoming
call during a call.
Note: It works only if “call_waiting.enable” is set to 1 (Enabled).
Permitted
Values
0-Disabled
1-Enabled
Default
1
Web UI
Features > Audio > Call Waiting Tone
Phone UI
Menu > Features > Call Waiting > Play Tone
Parameter
call_waiting.on_code <y0000000000xx>.cfg
Description
It configures the call waiting on code.
The phone will send the code to activate call waiting on server-side when you activate it on the
phone.
Permitted
Values
String within 32 characters
Default
Blank
Web UI
Features > General Information > Call Waiting On Code
Phone UI
Menu > Features > Call Waiting > On Code
Parameter
call_waiting.off_code <y0000000000xx>.cfg
Description
It configures the call waiting off code.
The phone will send the code to deactivate call waiting on server-side when you deactivate it on the
phone.
Permitted
Values
String within 32 characters
Default
Blank
Web UI
Features > General Information > Call Waiting Off Code
Phone UI
Menu > Features > Call Waiting > Off Code
Do Not Disturb (DND)
DND feature enables the phone to reject all incoming calls automatically when you do not want to be interrupted.
You can choose to implement DND locally on the phone or on the server-side.

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