What is the meaning of ‘designated texter’?

People nowadays may be able to live without food, water, friends, etc. They may however have problems living without their cell phone! An individual’s life revolves around this wretched instrument. We are so conditioned, that no matter what we are doing — talking to someone, driving, watching a play in a theatre — the moment the cell phone rings, we feel compelled to answer it. These days people don’t just use the cell phone to talk to others, they use it to send and receive messages. In our country, it is not uncommon to see people texting while driving a car or a motorcycle. A ‘designated texter’ is someone who sits next to the driver and reads aloud all the messages that the driver gets on his cell phone during the journey. He also sends messages that the driver wants him to. He makes sure that the driver doesn’t take his eyes off his road.

For some strange reason Abhay is always made the designated texter.