After buying Jio Sim my outgoing and incoming call feature was not working for that sim. So I downloaded Jio4GVoice app from Playstore as per Jio executive suggested. But I found there is lots of issue with this Jio sim.
Cons :
1) This app is only for Jio Users.
2) This app used for outgoing and incoming calls but both features work only in online mode it doesnt work offline.
3) You have to be connected to net for 24 hour if you required for incoming outgoing calls.
4) voice quality is not good as compare other network.
5) Video calling is good but stuck many times.
Over all app is only for jio user and not so good. 2 out of 5.
