Google Ads Call-Generation Setup

I run a local service business and I’m ready to switch my phones back on with a properly structured Google Ads campaign. I have used Ads in the past, paused the account a while ago, and now want a fresh start that focuses 100 % on driving phone calls rather than generic traffic... (Budget: ₹600 - ₹1500 INR, Jobs: Digital Marketing, Google Ads, Google Adwords, Google Analytics, Internet Marketing, PHP, PPC Marketing, Search Engine Marketing)