User Manual

Upgrading Firmware
225
This chapter provides information about upgrading the IP phone firmware. Two methods
of firmware upgrade:
 Manually, from the local system.
 Automatically, from the provisioning server.
The following table lists the associated firmware name for each IP phone model (X is
replaced by the actual firmware version).
IP Phone Model
Associated Firmware Name
SIP-T28P
2.x.x.x.rom
SIP-T26P
6.x.x.x.rom
SIP-T22P
7.x.x.x.rom
SIP-T21P
34.x.x.x.rom
SIP-T20P
9.x.x.x.rom
SIP-T19P
31.x.x.x.rom
Note
Upgrade via Web User Interface
To manually upgrade firmware via web user interface, you need to store firmware to
your local system in advance.
To upgrade firmware manually via web user interface:
1. Click on Settings->Upgrade.
2. Click Browse.
3. Select firmware from the local system.
4. Click Upgrade.
You can download the latest firmware online:
http://www.yealink.com/DocumentDownload.aspx?CateId=142&flag=142.