User Manual

Yealink Skype for Business HD IP Phones Administrator Guide
100
During the auto provisioning process, the Skype for Business phone supports the following
methods to discover the provisioning server address:
 DHCP: DHCP option can be used to provide the address or URL of the provisioning server
to Skype for Business phones. When the Skype for Business phone requests an IP address
using the DHCP protocol, the resulting response may contain option 66 or the custom
option (if configured) that contains the provisioning server address.
 Static: You can manually configure the server address via phone user interface or web user
interface.
For more information on the above methods, refer to
Yealink_Skype_for_Business_HD_IP_Phones_Auto_Provisioning_Guide .
Upgrading Firmware
Yealink supports three methods to upgrade phone firmware:
 Upgrade firmware via web user interface: Download firmware in ROM format, and
upload it to the Skype for Business phone via web user interface. This method can deploy
small number of phones.
 Upgrade firmware from provisioning server: Download firmware in ROM format, and
use centralized provisioning method to upgrade the firmware. This method requires
setting up a provisioning server, and uses configuration files to provision the Skype for
Business phone.
 Upgrade firmware from Skype for Business Server: Download firmware in CAB file
format, and place the firmware on Skype for Business Server to provision the Skype for
Business phone.
The following table lists the associated and latest firmware name for each Skype for Business
phone model (X is replaced by the actual firmware version).
Phone
Model
Associated
Firmware Name
Firmware
Name(.rom)
Firmware Name(.cab)
T48G
35.x.x.x.rom
35.8.1.65.rom
Yealink_ver_35.8.1.65.cab
T46G
28.x.x.x.rom
28.8.1.65.rom
Yealink_ver_28.8.1.65.cab
T42G/T41P
29.x.x.x.rom
29.8.1.65.rom
Yealink_ver_29.8.1.65.cab
T40P
54.x.x.x.rom
54.8.1.65.rom
Yealink_ver_54.8.1.65.cab
Note
You can download the latest firmware online:
http://support.yealink.com/documentFront/forwardToDocumentFrontDisplayPage .
Do not unplug the network and power cables when the Skype for Business phone is upgrading
firmware.