No, it's not possible. Could you describe your use case? If it's useful for other users we'll think about adding this feature to one of future versions.
e.g.
If I forget my mobile at home and I'm in office. I will call my wife to start the bloove application on my mobile then form my office through PC after login to my bloove account I should be able to make and receive calls using my mobile (which is at home)
I hope you can understand the things.