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Provisioning via TFTP Server

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Provisioning via TFTP Server

Step 1: Download a TFTP Server

Step 2: Configuring pumpkin your new TFTP server

Implement TFTP provisioning

TFTP stands for Trivial File Transfer Protocol. It is mainly used for automated file transfers between machines on UDP Port 69. In a VoIP environment TFTP is used to upload firmware files to Gateways, Phones and other hardware.

Step 1: Download a TFTP Server

PumpKIN is an open source TFTP client that is simple to use, follow the link and download the Server and Client of pumpkin. You can use another TFTP server if you prefer.
Download the executable and run the installer.

Step 2: Configuring pumpkin as your new TFTP server

PumpKIN Options

  1. Launch PumpKIN.
  2. From the PumpKIN menu follow to “Options” > “Server” > “TFTP file system root.” Point PumpKIN to the provisioning folder of your 3CX Phone System – by default:   C:\ProgramData\3CX\Instance1\Data\Http\Interface\provisioning\%%provdir%%. Where %%provdir%% is the randomly generated provisioning folder name. This folder will be used to place files you need to upload via TFTP or download.
  3. Other options can be set as needed. For example: “Read and Write Request Behavior” if you want a prompt before files are uploaded? or downloaded? Change network ports, timeout etc.
  4. Now you have a TFTP server installed you can begin updating your phones, gateways, routers as needed.

There are also other free TFTP clients out there. TFTPD32/64 or Solarwinds just to name a few others.

Implement TFTP provisioning

TFTP is a method to transfer the configuration and firmware to IP phones which can not be provisioned by other means. In order to implement TFTP provisioning follow the guide below.

  1. Download and execute the installer of PumpKIN.
    PumpKIN is an easy to use open source lightweight TFTP Server. If you are comfortable using another TFTP server, feel free to use it.
  2. Launch the application (default installation directory is C:\Program Files\Klever\Nothings) and select “Options.”
  3. Configure the Server as shown below:

Free for up to 1 year! Select preferred deployment:


for Linux on a $200 appliance or as a VM

Get the ISO


for Windows as a VM

Download the setup file

On the cloud

In your Google, Amazon, Azure account

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