Trigger words: talking (4)
Indicator sentences: By talking on the phone do you mean: 1) speakerphone 2) holding the phone in your hand and/or using your fingers to press things on the touchscreen ? These 2 things are very different from each other.
Negotiation parts: Funnily enough, when it comes to distracted driving they're not that different. I strongly disagree. One allows you to use 2 hands during driving. The other only allows you to use 1 hand. That's a significant handicap. One allows you to keep your eyes on the road at all times. The other - if you need to press buttons on a touchscreen, or look at the display - forces you to look away from the road.