In previous version we used the Android Native SIP/VOIP stack.
Now it seems that more and more manufacturers are disabling the native SIP stack
which leads to the situation that RRC-Nano Service is not installable on those phones.
To overcome this we decided to write our own SIP-stack.
So if you were unable to install the RRC Nano Service before you can now test this BETA version.
Download the installable APK HERE