I am use jio sim when first lonch only castomar damo sim.When best 4G network survice.but Not full fill 4G speed now random castomer jio sim.Jio net speed very low.120 /300kB/s speed now jio 4g.
Not outgoing call Vodafone and Airtel.many many tried then luckily one time connected. But MTS Aircel Idia connected one or two time .