Yealink SIP-T31G Administrator's Guide

Phone Customization
234
Parameter
phone_setting.incoming_call.horizontal_roll_interval <y0000000000xx>.cfg
Description
It configures the interval (in milliseconds) for the phone to horizontally scroll the caller information
when the phone is ringing.
Permitted
Values
Integer from 100 to 2000
Default
500
Supported
Devices
All phones except CP920
Parameter
account.X.update_ack_while_dialing
[1]
<MAC>.cfg
Description
It enables or disables the phone to update the display of call ID according to the ACK message.
Permitted
Values
0-Disabled
1-Enabled
Default
0
Parameter
account.X.refresh_remote_id.enable
[1]
<MAC>.cfg
Description
It enables or disables the phone to update the identity of the caller according to the request message
from the remote party.
Permitted
Values
0-Disabled
1-Enabled
Default
1
Parameter
sip.disp_incall_to_info
[2]
<y0000000000xx>.cfg
Description
It enables or disables the phone to display the identity contained in the To field of the INVITE message
when it receives an incoming call.
Permitted
Values
0-Disabled
1-Enabled
Default
0
[1]
X is the account ID. For T57W/T54W/T48U/T48S/T48G/T46U/T46S/T46G/T29G, X=1-16; for
T53W/T53/T43U/T42G/T42U/T42S, X=1-12; for T41P/T41S/T27G, X=1-6; for T33P/T33G, X=1-4; for
T40P/T40G/T23P/T23G, X=1-3; for T31P/T31G/T31/T21(P) E2, X=1-2; for T30P/T30/T19(P) E2/CP920, X=1.
[2]
If you change this parameter, the phone will reboot to make the change take effect.
Display Method on Dialing
When the phone is on the pre-dialing or dialing screen, the account information will be displayed on the phone
screen.

Yealink SIP-T31G Specifications

General

Mounting kit	Yes
Number of handles included	1 pc(s)
Display diagonal	2.3 \
Display resolution	132 x 64 pixels
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 95 %
Voice codecs	G.722, G.729, AGC, G.729A, AJB, PLC, G.711Mu, VAD, G.711a, G.723.1, G.726, iLBC, CNG, OPUS
AC adapter input voltage	100 - 240 V
AC adapter output current	0.6 A
AC adapter output voltage	5 V
Power consumption (typical)	3 W
Lines quantity	2 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	2
Sustainability certificates	RoHS, REACH
Networking standards	IEEE 802.3af, IEEE 802.1p, IEEE 802.1Q, IEEE 802.1x
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Ethernet LAN interface type	Gigabit Ethernet
Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Gray
Harmonized System (HS) code	85171800

Weight and Dimensions

Depth	189 mm
Width	188 mm
Height	162 mm
Package depth	210 mm
Package width	213 mm
Package height	103 mm