Hi
OMC is a centralised hub which is mainly designed to control remote entity to work from one location….
It is designed using mainly Server which may be of cisco,HP(as per ur need)and it will be connected to with Master XCDR which is connected to all XCDR of ur network and that XCDR has connectivity with BSC and Ur BSC will be connected with BTS…So by that means u kn connect to BTS remotely….
If any doubt then feel free to ask..