In Malaysia, some of the area having Long-term Evolution (LTE) coverage.
In other countries, Voice over WiFi (VoWiFi) and LTE Advance (LTE-A) is quite common.
However, there are several advantages of implementing VoLTE. These include:
(i) Better network experience – 6 times more efficient than 2G and 3 times more efficient compared with 3G;
(ii) Crystal clear audio quality with noise cancellation and High-Definition (HD) voice calls;
(iii) Faster call connection;
(iv) Faster connection speed enabling simultaneous browsing, downloads and streaming.
Thus, please choose a correct telco to enjoy better services !