Based on this Izotope "how to" page I expected to find the "GSM Cell Phone Buzz" preset… right where the instructions say it's supposed to be, in the De-Click filter.
(Rats, I'm not allowed to include the URL)
Keyword search "How to Remove Cell Phone Interference from Audio Recordings"
Well, it's not.
And, after two days and many back-and-forth emails with Antoine in their customer support I am now one insanely frustrated and highly annoyed RX11 user.
First, Antoine couldn't confirm if this preset was available in the Standard version or just in the Advanced version… or both. Nothing on the Izotope website provides any clarity either.
We exchanged numerous screen captures in which he showed where it "should" be… and, in response, I provided screen captures showing it wasn't there.
When the OEM of the software can not provide clarity in the specifics of their own product, and becomes belligerent when you call them out on poor/misleading documentation and support… well, you lose respect in their support capacity, and in the end lose interest in the product.