Nonsense!
You have no expectation of privacy at your place of business, or on their network! (except the rest rooms!)
Act accordingly, and you won't get into trouble.
While we do not actively examine internet traffic, will NEVER turn over traffic reports or browser history to a manager (if you, as a manager, suspect you have a problem with an employee wasting time on the internet, you already know you have a problem, deal with it!), understand, your internet traffic IS being monitored! Your PC IS being monitored and controlled. your company issued phone IS being monitors and controlled. We do not need your consent to do so! Your consent is assumed when you agreed to work here.
Understand, we do not care about your personal life, your political views, your shopping habits (but you should not be doing that at work, but hey, that's your managers problem), we care about protecting our network, protecting our data, and, protecting you! Also understand, if you are downloading torrents, hacking tools, illegal material, abusing the companies bandwidth, etc. YOU WILL GET CAUGHT!
If any of this bothers you then, BUY YOUR OWN PHONE, BUY YOUR OWN HOME PC and use that at home.