Thats what eSIM is for...I guess we should be able to buy a blank Sim card and be able to latch to network of our choice, once our plan expires every month. Just remove the porting model. It's frustrating these telecoms keep fighting and dragging customers into every **itty thing
But the sim will cost you $10 there plus there will be an activation charges wether you stay or port ! we can't compare India tele networks to American networks as American Tele networks are very much costlier than ours. So do the servicesIn America we get to change our number. Hopefully, same is introduced in India to avoid abuses. I get constantly abused because of Airtel issuing me someone's stolen sim.
Honestly now a days Airtel voice clarity is improved a much. Both Jio and Airtel tower is about 400 meters away from my home.My GF use airtel and I m a Jio user, now I need to pay 100₹ per month extra but still i will continue with Jio because no one can match the quality of voice call of Jio and yes I will get extra data also.