Yes. A portion of your cell phone bill can be taken as a deduction. There are multiple ways that you can determine how much should be deducted. One way, would be to estimate the percentage of time that you use your phone for this work, based on how many hours you work in a week or maybe the average number of hours you work in a week if it varies. Then deduct this percentage of the total bill.
This is a very informative Turbo Tax article that talks about income and expenses for Uber drivers. https://turbotax.intuit.com/tax-tools/tax-tips/Self-Employment-Taxes/How-to-Use-Your-Uber-1099s--Tax...
