I am using a handset Gigaset Brand model number GS290, made in Germany, unlocked, international version running with eOS 1.8.1.
Although the handset supports VoLTE & VoWiFi services with all major European cellular operators (stock Google ROM), why eOS is not compatible here in India with Jio service? When I insert a Jio sim, I can see LTE in the signal, I can also use internet, but cannot make voice calls since it doesn’t switch to VoLTE. Kindly advice.
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