Digital technology is set to produce James Bond-style advances in car safety and security.

Volvo On Call, due to be introduced in late 2001, uses the computer networks in Volvo's multiplex electrical system and an integrated telephone to communicate between the driver, a Volvo call centre and even the car itself.

For example, Volvo On Call can detect if the car has crashed and automatically call the emergency services if there is no answer.

The system also features an SOS button to call for help in the event of a personal attack or breakdown; tracks a car if it is stolen; tell the driver where the nearest petrol station is; and if the driver misplaces the keys he or she can calls Volvo On Call, quote a special security code and the doors will be unlocked via the car's phone link.

Volvo said the system would initially be a safety and security system but it will be gradually developed to become much more than that.

For example, if a car began to develop a fault while driving, it would be possible to call a local service centre that can communicate directly with the car's computer networks to make a diagnosis over the phone and suggest appropriate action.

If the car's own diagnostic system detected any malfunction (even before the driver was aware of it) it would be possible for the car to automatically book itself in for repairs or a service when a specific mileage is reached.