I have visited http://www.witelcom.com/.
What is different between witelcom OS and MT OS.
as I can see this company uses routerboards for units
WITELCOM recommend setting Dragon II radios (all types in the Dragon II family based on MIPS) in "Regular CPU Mode - rather than the default “Power Save Mode”. This is done in the CLI menu (\system routerboard settings - by the command “set cpu-mode=regular”). This improves stability in cold weather operations.
Witelcom OS IS RouterOS