Phone Call Ads

I have been in Tamil Nadu for years now, never have i witnessed such fallacy. I know there are ads everywhere, but even in phone calls?? I am sick of it, its an unskippable ad, it occurs every two calls i make. Is there any way to disable this ad?? Or is there another network which doesn't have ads? The ad is for cyber awareness, which is good and all, but as a person who calls a lot, repeating the same phrase again and again and again is just frustrating. Also, i am not sure if its only in Tamil nadu or all over india. If i can't switch my network, atleast a way to skip the ad would be helpful 😭