Getting Started55 Upgrade firmware from provisioning server: Download firmware in ROM format, anduse centralized provisioning method to upgrade the firmware. This method requiressetting up a provisioning server, and uses configuration files to provision the Skype forBusiness phone. Upgrade firmware from Skype for Business Server: Download firmware in CAB fileformat, and place the firmware on Skype for Business Server to provision the Skype forBusiness phone.The following table lists the associated and latest firmware name for each Skype for Businessphone model (X is replaced by the actual firmware version).PhoneModelAssociatedFirmware NameFirmwareName(.rom) Firmware Name(.cab)T48G 35.x.x.x.rom 35.8.0.50.rom Yealink_ver_35.8.0.50.cabT46G 28.x.x.x.rom 28.8.0.50.rom Yealink_ver_28.8.0.50.cabT42G/T41P 29.x.x.x.rom 29.8.0.50.rom Yealink_ver_29.8.0.50.cabT40P 54.x.x.x.rom 54.8.0.50.rom Yealink_ver_54.8.0.50.cabNoteUpgrading Firmware via Web User InterfaceTo manually upgrade firmware via web user interface, you need to store firmware to your localsystem in advance.To upgrade firmware manually via web user interface:1. Click on Settings->Upgrade.2. Click Browse to locate the required firmware from your local system.3. Click Upgrade.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 upgradingfirmware.
