The most important information: address and phone number - when fire brigade, police or municipal police intervention is needed.
By dialing an alarm number '112' you will be connected with fire brigade unit (if calling from stationary phone) or with police office (if calling from mobile phone).
Telephone operators inform and send required emergency services according to received information and need, they can also put you through with telephone operator of particular emergency service.
Such numbers as 997(police), 998(fire brigade), 999(ambulance) were left because people are used to them and because of the specific help some calls need.