Since UCS 3.3.0 or later the UC Software and BootROM / Updater Version is shown on the Web Interface:
Pre UCS 3.3 0 (can be used in UCS 3.3.0 and newer as well):
Press Menu Key => select Status => select Platform => select Application => select Main (shows SIP/UCS Version)
Press Menu Key => select Status => select Platform => select Phone (shows Part Number Version)
Above example would be a SPIP650
BootROM or Updater
Since UC Software 5.4.0 we also support a multiple key combination to have easier access to such information.
Pressing on a VVX Phone the keys 1, 4 and 7 will display: