TCCCTypeDef.TCCCStartCallParams callParams =new TCCCTypeDef.TCCCStartCallParams();
//1343xxxx is the phone number
callParams.to = "13430xxxx";
// Initiate a call. Call the login API before initiating a call. tcccSDK.login
tcccSDK.call(callParams, new TXCallback() {
    @Override
    public void onSuccess() {
        // call success
    }

    @Override
    public void onError(int code, String desc) {
      // call error
    }
});
// End the call
tcccSDK.terminate("");