From what I recall when looking into this some time ago ...
Project revenue includes .. - Equipment supply and install - One off maintenance/upgrades
Recurring revenue are from package deals ... - Equipment supply, install and maintain (some maybe all costs amortised over the contract period) - Billing of offenders (red light, speeding, etc) or users of car parks (number plate recognition systems) - I think billing may extend to collection in some cases (not sure), ie. late payment followup - RDF gets paid fees to provide the complete service (possibly as a share of revenue generated in some cases)
Anyone else with more details?
RDF Price at posting:
52.0¢ Sentiment: Buy Disclosure: Held