There are two definitions: a) Personal Data and b) Emergency Situations
What is an emergency situation and how can a car determine it is one? These are "smart" cars which aren't nowadays smart enough to process all your data locally, so that data is sent to servers elsewhere which process if either points a) or b) apply.
It is your choice to believe that voice data is ever deleted once acquired by governments and entities thirsty to benefit from that information.
For security experts this is just another "I told you so" within a few years.
Emergency situations are defined by two situations: severe accidents and manual press of the button. Article 6 covers the data being sent, Article 5 covers the manufacturer's obligations. Your audio during the accident and your last three locations may leak, but the eCall system is not designed for a permanent phone-home system. If I remember correctly, you can't even use the eCall SIM for tracking as that'd encourage people to disable safety features.
All the things you are talking about, permanent phone-home, tracking of location, audio and video, driving habits, are tracked, sent and resold. That's what smart cars do. But it is not done through the eCall system. See it from the company perspective: why would they risk penalties for non-compliance when they can gather and resell all personal data with no risks using their own system instead of a safety one?
I stated that the microphone and network access installed on modern car for emergency situations can and will be used 24/7 when deemed "necessary" for your "security".
There are two definitions: a) Personal Data and b) Emergency Situations
What is an emergency situation and how can a car determine it is one? These are "smart" cars which aren't nowadays smart enough to process all your data locally, so that data is sent to servers elsewhere which process if either points a) or b) apply.
It is your choice to believe that voice data is ever deleted once acquired by governments and entities thirsty to benefit from that information.
For security experts this is just another "I told you so" within a few years.