@Gwynfry_3304684 Ringtones are a feature on your phone and so are nothing to do with your Smarty sim.
If you can download a ringtone to your phone, you can usually link it to one or more callers as you choose.
I have done this with family members so that I can tell who is calling without looking at the phone (and make sure I answer pretty quickly if it's my wife!!!)
