A Canadian company on Monday unveiled software crafted to prevent people, particularly mobile device-loving teenagers, from making telephone calls or text-messaging while driving.

Aegis Mobility describes DriveAssist as "advanced call management technology" that essentially creates virtual personal secretaries to intercept calls or text messages intended for mobile telephones in moving cars.

DriveAssist software detects when phones are moving at automobile speeds and then tells callers that the person they are trying to reach is driving. Callers are invited to leave messages or call-back numbers.

The service will also tell callers, presumably parents or employers, where the person they are trying to reach is located by using satellite navigation technology in devices or orienting based on cell signal towers being used.

People can bypass the service and be connected to drivers by indicating calls are emergencies.

DriveAssist is negotiating with telecom carriers to make the service available on a monthly subscription fee basis.