nt between friends can be easily overcome by configuring a copyright violation. However, the pair-to-pair phenomenon is SO huge that it seems difficult to cancel it by simply calling it "informatics piracy." Perhaps, the phenomenon will be regulated both by controlling the exchange sites and by adapting the copyright rules, and it will be estab- lished as a telecommunication service in its own right. Business-oriented services are clearly divided among services for small businesses and services for big firms. In the first case, the service bundle does not differ essentially from that offered to the retail market. Typical differences are more than one telephone num- ber associated with different internal phones, network support for phone conferences with several external numbers, and the substitution of TV channels with a network-based videoconferencing service. The main difference between retail and small business is, however, the granted service level agreement (SLA) and the security from intrusion and detection of private data. In the case of small business, an SLA is generally contained in the service fruition con- tract, both in terms of service availability and service quality. On the contrary, no specific SLA is granted in retail contracts, considering data services operated on a best-effort ground. In a few European countries, there is an SLA on the plain telephone, surviving from the monopoly period, fixing the maximum out-of-service time. This SLA was imposed by the administration on the grounds of the necessity to assure telephone service in case of extraordinary need. However, there is almost everywhere push from the carriers for the cancellation of this regulation. As a matter of fact, with the diffusion of cellular phones, its rationale almost disappears. In the case of big companies, the service offering is quite different. Before the Internet revolution, the typical service for big companies was the rent of a dedicated TDM capacity. This capacity was used to connect the firm PABX in a secure manner