Endpoint Management 6.03 UMS Articles UMS Communication Ports Current: UMS and Devices: File Transfer PDF Download PDF Download page UMS and Devices: File Transfer. Current page All pages UMS and Devices: File Transfer To fetch files from the UMS, e.g. a background image or log files, the devices send an HTTPS request to the UMS server. The UMS server is listening on port 8443.The following figure illustrates the communication between the devices and the UMS: ×