3CX Phone System Version 10 features the ability to easily change your IP Phone's LCD display language network wide or on a per phone basis. For Cisco phones, the procedure is as follows:

  1. Download the required language packs that are applicable for your phone model from here.
  2. Open the 3CX Management console -> Settings -> Phone Provisioning -> Firmware -> Add firmware and add the language files in the firmware folder
  3. Click on Extensions and double click the Cisco phone you would like to update.
  4. Click on the Phone Provisioning tab and select the desired phone display Language from the available list of languages. Press OK to save changes.
  5. Go to the Phones page, select the Cisco phone entry and click on Reprovision Phone button. The phone will re-provision and load the selected language file.

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