Yealink SIP-T31 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-T31 Specifications

General

Resolution	132x64 pixels
Line Keys	2
HD Voice	Yes
Wall Mountable	Yes
SIP Accounts	2
Supported Protocols	SIP v1 (RFC2543), v2 (RFC3261)
Display	2.3" graphic LCD
Network Ports	2x 10/100M Ethernet ports
PoE	Yes, Power over Ethernet (IEEE 802.3af), class 2
Headset Support	Yes, RJ9 port
Voice Codecs	G.711, G.726, iLBC
Local Phonebook	1000 entries