My understanding of what you are saying (and it seems very straightforward to me) is that just like any smartphone, your smartphone has a photo gallery where it stores photos that you take with your smartphone camera and any photos that you might otherwise import from another digital camera or other computer or whatever. All smartphones have a photo gallery like that. The gallery is more or less just a file folder where the smartphone stores photos. It's like the Photos and Videos folders that automatically come installed on a Windows computer.
My understanding is that the problem you are having is that when you talk with someone who is a contact in your RingCentral contacts, and when you also have a photo of that person in their contact file, the app places a copy of the photo in your photo gallery with all your other photos, such as photos that you have taken with your smartphone camera.
Is this correct?
It doesn't have anything to do with turning contacts off.
I have an Android phone. On my phone, the contacts photos are automatically stored in a folder named "clusb" which is in the "Phone" folder at the very root of the internal phone storage. But I only have five or six contacts for whom I've added photos to their contact files. And I haven't called or received calls from any of them, so I don't know what would happen in that event. At present, I find no copies of those contact photos in the gallery for the camera.
If you have an iPhone, there may be some method to help you. If not, you might have to just go through your contacts on the phone and delete the photos for each contact that has a photo. At the same time, if you are syncing your phone with contacts from the cloud or from your computer, and if those contacts lists contain photos, they're likely to be reintroduced to your contacts on your phone during the sync process.
Rhonda - if the user has a Picture uploaded to their RingCentral App Profile, it will sync on the account and show up on your app. There is no way for you to disable/delete the images if a User has one uploaded. Everyone on the account will syncs.