A free program for Android, by iweb telecom.

MaxxVoip – No1 is a VoIP solution that can be used as a business VoIP and an all-in-one platform for instant messaging and voice calling. This app is developed to make it easier for service providers to offer VoIP services to their customers, and for customers to make VoIP calls and send instant messages across different platforms.

The app can be customized to work with different brands and models of smartphones. It supports various types of voice calls and instant messages. For instance, it is compatible with Android, iPhone, BlackBerry, and other smartphone operating systems.

It has a simple user interface that is easy to use. The app is compatible with most mobile phones. It supports mobile phones with data connections (3G/4G or WiFi) and Wi-Fi.