One touch, no reach. Those are the two fundamentals for using two-way radios (walkie-talkies) safely while driving. Federal regulations forbid the use of cellphones and sending text messages while driving commercial vehicles. However, these statutes do not prohibit the use of two-way radios, but they do offer guidelines for keeping radio users safe while driving on company business. According to federal regulators, the two greatest risks of using a cell phone while driving are reaching .