This is an Internet Telephony based Soft Phone that enables you to receive and make calls on your smartphone. Connection is made to the dedicated central hosted Switching system. The App enables VoIP calls over 4G and WiFi networks and supports small band codecs for optimisation of bandwidth usage.
Note: you need to have an account from your VoIP provider in order to use this software. This is a supplier specific application and not a generic VoIP service. More information can be found on the provider’s website.