Self-employed

The expenses in TurboTax Online correspond to what's on the T2125 form, because the CRA is going to get the form. There are sometimes differences in the wording because TurboTax is trying to be easy to use, while the CRA themselves are often not clear on what is what. 

Still, if you aren't going to claim your cell phone costs as a home office expense, then you can put it under utilities. You can find it in the expenses search by searching for "phone", or just go to page 4.