VoLTE allows an operator to offer both voice and data over a 4G LTE network. The big advantage of VoLTE is that call quality is superior to 3G and 2G connections (through which voice is usually routed) as much more data can be transferred via 4G. - From above statement, we can infer: VOLTE associated with 4g so #1 is wrong. VOLTE allows both data and voice so #2 is wrong.
