I have used almost every network in india. And jio is the worst in terms of calling. The only reason people are using jio is due to its cheap rates. I have been compromising on call quality since 6 months waiting for jio to rectify the problem. But there are a lot of call drops , connectivity issues and signal problems. jio internet is definetely worth the price but I faced a lot of situations where I need to make a call but jio does’nt connect. Its very irritating and in many situations we need to compromise on calling. So finally I changed to airtel and calling is not an issue anymore .There is a 449 plan with 75 rs cashback with daily 1gb and free calling with validity of 70 days in airtel. peace of mind.