I've run into this issue a few times and always do my best to make sure Cell Phones are off or in Airplane Mode when recording begins, but doing documentary work and events it doesn't always pan out that way. I have a current audio file that is covered in the cell phone frequency beeps and no matter what method of noise reduction or adapative noise reduction I've utilized, it still persists in some capacity.
Anyone else dealt with this and have a solution without disrupting voice quality?
You may wish to take a look at the DeClicker feature in Windows > Diagnostics.
If this doesn't work you can usually see this interferance in the Spectral Frequency View. You could then use the spot healing brush tool to paint the interferance out.