Page 418 of 910 Configuration of IP Telephony nodes using Element Manager
553-3001-365 Standard 4.00 August 2005
Figure 111
Configure file server
UFTP
IP Phones use UNIStim File Transfer Protocol (UFTP) to transfer the
firmware; therefore, the customer’s network must support UFTP. The
customer's network must open port 5105.
Note: If the firmware cannot be transferred due to firewall restrictions
(such as when the IP Phone is behind a firewall that has port 5105
blocked), then upgrade the IP Phone with the current firmware version
before distributing the telephone.

Default location of firmware files

The default location of the firmware files is different depending on the system
configuration, due to limitations of the various platforms:
• Signaling Server: