KK Plus is a mobile app for smartphones, offering a range of functionalities like VoIP Calls, from data enabled mobile phones (3G/4G or WiFi).
For using this app, end users will need an Username & Password, which they can obtain from [email protected].
Features:
Call landlines and mobiles for extremely low-rates around the world
Free app-to-app audio calling,
Highly configurable and secure with TLS, SRTP protocols
Compatible with SIP Standard IGW