Yealink T19P-E2 Configuring Guide

Yealink IP Phones Configuring Guide
72
Firmware and Upgrading Issues
Why doesn’t the IP phone upgrade firmware successfully?
Do one of the following:
 Ensure that the target firmware is not the same as the current firmware.
 Ensure that the target firmware is applicable to the IP phone model.
 Ensure that the current or the target firmware is not protected.
 Ensure that the power is on and the network is available in the process of upgrading.
 Ensure that the web browser is not closed or refreshed when upgrading firmware via web
user interface.
How can I verify the firmware generation and version of the
phone?
Press the OK/√ key when the IP phone is idle to check the firmware version. For example:
28.82.0.20.
Item
Description
1
28
Firmware ID.
The firmware ID for each IP phone model is:
 97: T57W
 96: T54W
 95: T53W/T53
 78: CP920
 70: SIP-T54S/T52S
 66: SIP-T48S/T46S/T42S/T41S
 54: SIP-T40P
 76: SIP-T40G

Yealink T19P-E2 Specifications

General

Network	10/100 Mbps Ethernet
PoE	Yes
Protocol	SIP
Wall Mountable	Yes
SIP Accounts	1
Lines	1
Display	132x64 pixel graphical LCD
Voice Codecs	G.711(A/µ), G.729AB, G.726, iLBC