what`s meaning 4 `HLR' as promised , i mean comunications ??..?

Answer 1

HLR Half-Life Rally (gaming, Half-Life modification)
HLR Harvard Law Review
HLR Heavy Lift Replacement (USMC replacement aircraft)
HLR Hidden Line Removal (CAD)
HLR High Level Rescue
HLR High Lift Rotor
HLR Historic Lotus Register
HLR Hoffman La Roche
HLR Home Location Register (register component that interfaces with other components in a GSM and CDMA system)

Any of these work? That last one also shows up on the second link in a fuller explanation.