I have Sony xperia xa dual it is that type of phone who does not support volte, it supports lte 4g so vie this app I can call use Internet I can call in all phones
I have one more advantage it has video call with is very simple use, it’s video call features is as simple as calling so u can easily video call to any other Jio 4g voice use
It read all content without opening other app so it’s a one of the major things
This has one disadvantage of this app if in your mobile data off your cannot use it
One more disability it take soo much try to take one call in some time or conditions
But it is very use full app for all 4g user