How does eToll work and what are the key steps involved in using the system?

eToll is an electronic toll collection system that uses a transponder in your vehicle to automatically pay tolls. The key steps involved in using the system are: 1. Obtain an eToll transponder from the toll authority. 2. Register the transponder to your vehicle and set up a prepaid account. 3. Mount the transponder on your windshield. 4. Drive through designated eToll lanes at toll plazas. 5. The toll is automatically deducted from your prepaid account.