Yealink SIP-T27G Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
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Parameter
auto_redial.enable <y0000000000xx>.cfg
Description
It enables or disables the phone to automatically redial the last dialed number when the callee is tem-
porarily unavailable.
Permitted
Values
0-Disabled
1-Enabled
Default
0
Web UI
Features > General Information > Auto Redial
Phone UI
Color Screen Phones:
Menu > Features > Others > Auto Redial > Auto Redial
Black-and-white Screen Phones:
Menu > Features > Auto Redial > Auto Redial
Parameter
auto_redial.interval <y0000000000xx>.cfg
Description
It configures the interval (in seconds) for the phone to wait between redials.
The phone redials the last dialed number at regular intervals untill the callee answers the call.
Permitted
Values
Integer from 1 to 300
Default
10
Web UI
Features > General Information > Auto Redial Interval (1~300s)
Phone UI
Color Screen Phones:
Menu > Features > Others > Auto Redial > Redial Interval
Black-and-white Screen Phones:
Menu > Features > Auto Redial > Redial Interval
Parameter
auto_redial.times <y0000000000xx>.cfg
Description
It configures the auto redial times when the callee is temporarily unavailable.
The phone tries to redial the callee as many times as configured till the callee answers the call.
Permitted
Values
Integer from 1 to 300
Default
10
Web UI
Features > General Information > Auto Redial Times (1~300)
Phone UI
Color Screen Phones:
Menu > Features > Others > Auto Redial > Redial Times
Black-and-white Screen Phones:
Menu > Features > Auto Redial > Redial Times
Parameter
features.redial_via_local_sip_server.enable <y0000000000xx>.cfg
Description
It configures the phone to redial via local SIP server or remote SIP server.
Permitted
Values
0-Remote SIP Server
1-Local SIP Server
Default
1

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