Firmware Upgrade
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Firmware Upgrade
There are two methods of firmware upgrade:
l Manually, from the local system for a single phone via web user interface.
l Automatically, from the provisioning server for a mass of phones.
Note
We recommend that the phones running the latest firmware should not be downgraded to an earlier firmware version. The
new firmware is compatible with old configuration parameters, but not vice versa.
Topics
Firmware for Each Phone Model
Firmware Upgrade Configuration
Firmware for Each Phone Model
You can download the latest firmware online:
http://support.yealink.com/documentFront/forwardToDocumentFrontDisplayPage.
The following table lists the associated and latest firmware name for each IP phone model (X is replaced by the actual
firmware version).
IP Phone Model Firmware Name Example
T58V/T58A/T56A 58.x.x.x.rom 58.83.0.15.rom
CP960 73.x.x.x.rom 73.83.0.25.rom
Firmware Upgrade Configuration
Before upgrading firmware, you need to know the following:
l Do not close and refresh the browser when the IP phone is upgrading firmware via web user interface.
l Do not unplug the network cables and power cables when the IP phone is upgrading firmware.
The following table lists the parameters you can use to upgrade firmware.
Parameter static.firmware.url <y0000000000xx>.cfg
Description It configures the access URL of the firmware file.
Permitted Values URL within 511 characters
Default Blank
Web UI Settings->Upgrade->Upgrade Firmware
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