Core4VoIP Mobile Dialer is a SIP dialer designed for Android, specifically for low bandwidth areas. The voice is transmitted through IP packets over the Internet. This application can run on any Android OS, making it accessible to a wide range of users.

With Core4VoIP Mobile Dialer, users can make calls over the Internet, making it a cost-effective choice for those with limited phone plans or international calls. The dialer is user-friendly and easy to navigate, with a simple interface that allows for easy calling and messaging.

One of the standout features of this dialer is its ability to work in low bandwidth areas, ensuring that users can still make calls even in areas with poor internet connectivity. Overall, Core4VoIP Mobile Dialer is a reliable and efficient choice for anyone looking for a low-bandwidth SIP dialer on Android.