After using this Intercom Selection Assistant you should also consult the manufacturer's installation and user manuals to confirm that the model intercom suggested here will suit your requirements, and to determine the required cable types, configurations, and maximum distances.
You may also consult with a Clever Home automation Engineer for assistance:
www.cleverhome.com.au/contact.html. We may also help you get more out of your selected audio/video intercom by integrating it with your security, access control, and home automation systems. You may purchase all of the products suggested on this Intercom Selection Assistant from Clever Home Pty Ltd, if you live in Australia.