VoLTE: What is it?
VoLTE or Voice over LTE is technology that enables voice calls on the Optus 4G network.
It delivers some great improvements to voice calling. You can experience faster call connection times compared to 3G, and talk and browse at the same time using 4G. Plus, just like our 3G network, 4G voice calls are high definition (HD) for sharp, clear call quality.