Android Device phone call ability

Question

How can I tell whether a given device has the ability to make phone calls?

For example, my Galaxy Tablet cannot initiate call, its not a phone. I want to detect tha

Answer 1

I have not checked this yet but here is a solution I came up with that seems like it should work fine. I don't think this requires any special permissions since it is just looking for bools set by the manufacture.

static boolean isRunningOnPhone(Context context){
    UiModeManager uiModeManager = (UiModeManager) context.getSystemService(UI_MODE_SERVICE);
    PackageManager packageManager = context.getPackageManager();
    boolean a = packageManager.hasSystemFeature(PackageManager.FEATURE_TELEPHONY);
    boolean b = packageManager.hasSystemFeature(PackageManager.FEATURE_SIP_VOIP) || context.getPackageManager().hasSystemFeature(PackageManager.FEATURE_TELEPHONY_CDMA) || context.getPackageManager().hasSystemFeature(PackageManager.FEATURE_TELEPHONY_CDMA);
    boolean c = packageManager.hasSystemFeature(PackageManager.FEATURE_TOUCHSCREEN);
    boolean d;
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
        d = packageManager.hasSystemFeature(PackageManager.FEATURE_AUTOMOTIVE);
    }else {
        d = !(uiModeManager.getCurrentModeType() == Configuration.UI_MODE_TYPE_CAR);
    }
    boolean e = !(uiModeManager.getCurrentModeType() == Configuration.UI_MODE_TYPE_TELEVISION);
    boolean f = uiModeManager.getCurrentModeType() == Configuration.UI_MODE_TYPE_APPLIANCE;
    boolean g = true;
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT_WATCH) {
        g = !(uiModeManager.getCurrentModeType() == Configuration.UI_MODE_TYPE_WATCH);
    }

    return a && b && c && d && e && f && g;
}