Yealink SIP-T23G Recovery Guide

Recovery Mode on Yealink IP phones
6
Note
After successfully connecting the USB flash drive, LCD screen prompts “USB device has been
connected successfully!”.
Using Recovery Mode and Runing Backup
System on Yealink IP Phones
This section introduces how to enter recovery mode and run the backup system on Yealink IP phones
step by step.
For Dual System Devices
This section is only applicable to SIP phone series including SIP-T58W, SIP-T42U, SIP-T43U, SIP-T46U,
SIP-T48U, SIP-T57W, SIP-T54W, SIP-T53W, SIP-T53, SIP-T53C, CP965, CP925, and VP59.
Procedures
1. Long press (Speakerphone key) and reconnect the power adapter to trigger the recovery
mode. Do not release until the recovery mode wizard appears on the phone LCD screen.
On the CP960 IP phone, you can only connect to the USB port next to the micro USB port to use
the recovery mode.

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