Yes, UNDO offers VoLTE & VoWIFI services. You have automatic access to them as long as your smartphone allows it and you have authorized these services on your smartphone.
– VoLTE
VoLTE stands for Voice over LTE (Long Term Evolution), i.e. calling via 4G. You can automatically benefit from this technology if you have a compatible smartphone.
– VoWIFI
VoWIFI means calling over WIFI, i.e. calling over WIFI. If it happens that you have poorer mobile network coverage (4G/5G) but have a good WIFI connection, then you can call via the WIFI network when the quality of the mobile network at the location where you are is insufficient. This is the ideal solution if you benefit from poorer mobile network coverage (4G/5G) at your home or office. But be aware that good WIFI coverage remains important to ensure optimal quality of your calls via WIFI.