Yealink SIP-T23G Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
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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:

Yealink SIP-T23G Specifications

General

Backlight	Yes
Voice codecs	G.711a, G.722.2, G.726, G.729ab, iLBC
Volume control	Digital
Handset type	Wired handset
Product type	IP Phone
Product color	Black, Silver
Display resolution	132 x 64 pixels
Lines quantity	- lines
Phonebook capacity	1000 entries
Number of VoIP accounts	3
Networking standards	IEEE 802.1p, IEEE 802.1Q, IEEE 802.1x, IEEE 802.3af
Ethernet LAN (RJ-45) ports	2
AC adapter input voltage	100 - 240 V
AC adapter output current	0.6 A
AC adapter output voltage	5 V
Power consumption (typical)	1.56 W
Number of handles included	- pc(s)
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 95 %

Weight and Dimensions

Depth	188 mm
Width	209 mm
Height	150 mm