I am implementing a video conference setup in my home office that needs to connect with the parent office in Lugano, Switzerland. I am going to be using IP based calls to connect to save money but they use ISDN hardware for communications. Are there any providers out there that can be used as mediators for these types of calls? I have looked into GlowPoint but they were very expensive. I just need someone who will provide us the ability to conenct since we are using two different platfoms of communication.