Jio Sim in Unlocked Airtel Mifi E5573 Device - How to call ?

hi guys,
unlocked Airtel E5573 (useless one in home, due to costly AIrtel 4G cost bought for travelling purpose) successfully and inserted jio sim, now getting good download speed and no worry about mabile battery now, as jio sim drain battery in less than half day of usage.

Now problem is, Jio4Gvoice app is not detecting sim in mifi device and not able to Loot free calls
any solution ??

Offtopic:
unlocked using this video