Where the service is not provided over a switched telephony network, the information should also include the level of reliability of the access and of caller location information compared to a service that is provided over a switched telephony network, taking into account current technology and quality standards, as well as any quality of service parameters specified under Directive 2002/22/EC .

The upgrade we are talking about puts in place a third power supply that is seismically qualified — another independent diesel generator, another independent bank of batteries, and an automatic transfer system.

Alstom TD makes products, systems and services for the high- and medium-voltage electricity sector and also supplies equipment for the transformation of electrical energy from one voltage level to another, including the switching and branching systems.

The third level of network sharing involves the core network, including mobile switching centres (MSCs) and various databases, also referred to as the "intelligent part" of the network.

This upgrade paves the way towards the so called 2.5G services, offering both higher data transmission rates than GSM and "always-on" capability by introducing the packet-switched operation mode in GSM networks.

In his announcement, Mr Carpentier explained that actions were required specifically: - to enhance user services; - to improve interworking between heterogeneous computers through the provision of systems conforming to European norms, currently being defined on the basis of internationally agreed standards for OSI; - to help users of existing closed or dedicated networks to contact their colleagues in the outside world, and to be contacted by them, by helping them in duly justified cases with the process of transition to use of the OSI standards; - to improve further the level and quality of service provided by the underlying packet-switched infrastructure of the PTTs and PTOs (Private Telecommunications ...[+++] Operators).