When operating a CMV:

Question

While operating a CMV, you may not make voice calls if you need to hold your phone or press more than one button to do so. Additionally, you may not send or read text messages while driving.

Accepted Answer

You are not allowed to press more than a single button on a cell phone to make a phone call.

Answer

You may make a phone call by pressing multiple buttons.

Answer

You can send text messages.

Answer

You may send text messages, but only to your employer.