WebRTC connection fails on Cellular Data

Question

I am trying to create an android application with WebRTC using these projects:

AndroidRTC

Which uses this repository: io.prinstine.libjingle

This project is working well when two clients are connected to the net over wifi but it doesnt work when one of the clients is connected via cellular data.

I tried to find the source to see what is going on an I found this static class:

public static class Options {
    // Keep in sync with webrtc/base/network.h!
    static final int ADAPTER_TYPE_UNKNOWN = 0;
    static final int ADAPTER_TYPE_ETHERNET = 1 << 0;
    static final int ADAPTER_TYPE_WIFI = 1 << 1;
    static final int ADAPTER_TYPE_CELLULAR = 1 << 2;
    static final int ADAPTER_TYPE_VPN = 1 << 3;
    static final int ADAPTER_TYPE_LOOPBACK = 1 << 4;

    public int networkIgnoreMask;
  }

And I have found this line of code which refers to a native method that uses this class:

public void setOptions(Options options) {
    nativeSetOptions(nativeFactory, options);
  }

public native void nativeSetOptions(long nativeFactory, Options options);

The question is how can I enable connection over cellular data? or I would appreciate it if you would help me to find the source of the native methods used in this project to better understand the structure.

Answer 1

from what you have said i think the library your using is connecting over wifi on default, so if you plan on using cellular data then i think you should make a test for that then use the setoptions method found within the library else the library or your app wil keep trying to make a connection over wifi.