Configure a Phone Using a USB Flash Drive

You can configure a Polycom Trio system or Polycom Trio Visual+ accessory with configuration files stored on a USB flash drive.

If you have other USB devices attached to a Polycom Trio system, you must remove them and make sure that the Polycom Trio system correctly recognizes the configuration USB flash drive.

Changes you make using a USB flash drive override the settings you configure using a centralized provisioning server (if applicable). When you remove the USB flash drive, the Polycom Trio system reverts to the provisioning server settings. However, the USB flash drive can initiate direct.set changes in the provisioning server settings. The direct.set changes can alter parameters on the provisioning server and change basic provisioning settings.

Note: Polycom Trio 8800 systems support only File Allocation Table (FAT) file systems. Polycom recommends using FAT32.


  1. Do one of the following:
    • Format a blank USB 2.0 USB flash drive using FAT32.
    • Delete all files from a previously formatted USB flash drive.
  2. Download the UC Software from Polycom Support.
  3. Copy the configuration files you want to use to the root of the USB flash drive.

    At a minimum, you must include the following configuration files:

    • Master configuration file: 000000000000.cfg
    • Polycom Trio 8500: 3111-66700-001.sip.ld
    • Polycom Trio 8800: 3111-65290-001.sip.ld
    • Polycom Trio Visual+: 3111-66420.001.sip.ld
  4. Insert the USB flash drive into the Polycom Trio 8800, 8500,or Polycom Trio Visual+ USB port.
  5. Enter the Administrator password.

    The system detects the flash drive and starts the update within 30 seconds. The mute keys' indicator lights begin to flash, indicating that the update has started.

    The system reboots several times during the update. The update is complete when the indicator lights stop flashing and the Home screen displays.