Can't you drive it and talk at the same time?
Yes you can ( and even drink .. read .. write .. see a movie ..etc .. ) ... but you are taking huge risks .. because one of the tasks may occupy your attention more than the other
To put it another way .. you employ half your concentration for driving and the other half to use your mobile phone ... it is already dangerous
If your attention to the conversation is greater than that devoted to drive .. you endanger your life and that of other road users
For this reason, many countries have passed legislation that prohibits the use of mobile phone while driving a vehicle ...
Multitasking yes .. but take care
