I think it can be an ascocenda Laksi...something. I have a Laksi Liang that looks pretty similar to this one, just a bit more lilac on the lip, if I remember correctly. It's in bloom right now. I'll try to take a couple of pictures and we can compare them.
Right. I promised some pictures of my flowering Ascocenda Laksi Liang, and here they are.
I struggled with the colours. It was bad light and I just did not manage to capture the red colour in a good way, but it gives you a pretty good idea, I hope.