Yealink SIP-T31G Administrator's Guide

Phone Customization
232
You can configure what contact information presents and how to display the contact information. If the contact exists
in the phone directory, the phone displays the saved contact name and number. If not, it will use the Calling Line
Identification Presentation (CLIP) or Connected Line Identification Presentation (COLP) to display the contact’s iden-
tity.
Topic
Call Display Configuration
Call Display Configuration
The following table lists the parameters you can use to configure the call display.
Parameter
phone_setting.contact_photo_display.enable <y0000000000xx>.cfg
Description
It configures whether to display contact avatar when it receives an incoming call, dials an outgoing
call or engages in a call.
Permitted
Values
0-Never, do not display contact avatar no matter whether the contact avatar exists or not
1-Always, display the customized contact avatar if it exists; display the built-in avatar if the customized
contact avatar does not exist
2-Adaptive, display the customized contact avatar if it exists; otherwise, do not display
Default
1
Supported
Devices
All color screen phones
Web UI
Settings > Call Display > Contact Photo Display Mode
Parameter
phone_setting.little_contact_photo_display.enable <y0000000000xx>.cfg
Description
It enables or disables the phone to display the little contact photo when it receives an incoming call,
dials a call or is in a call.
Note: It works only if "phone_setting.contact_photo_display.enable" is set to 1 (Always) or 2 (Adapt-
ive).
Permitted
Values
0-Disabled
1-Enabled, the phone can display the full 16-digit number.
Default
1
Supported
Devices
T46U, T46S
Parameter
account.X.picture_info_enable
[1]
<MAC>.cfg
Description
It enables or disables the phone to download the picture from the URL contained in the Call-Info
header of the INVITE message.
Format of call info:
Call-Info: <Image URL>;purpose=wallpaper
Call-Info: <Image URL>;purpose=icon
Note: If the phone receives both the call info information of "purpose = wallpaper" (wallpaper) and
"purpose = icon" (avatar) at the same time, only the wallpaper is displayed, the avatar is not displayed.
Permitted
Values
0-Disabled
1-Enabled
Default
0
Supported
T46S, T48S, T46U, T48U, T54W, T57W, T33P, T33G

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