More information at https://www.acma.gov.au/webwr/aca_home/licensing/telcomm/app_form/accesing_buildings_install_tcomms_facilities.pdf
Some notes…
The carrier must…
take all reasonable steps to make use of existing facilities for
the activity
So if you had already cabled for high speed networking back to a central location, you could force them to install their equipment there and connect to your cables (they would not be allowed to run additional cables). You could then have multiple providers where you can patch to each unit from the basement!
You have some say in installation location for high speed broadband connections (not so for mobile phone towers).
An in-building subscriber connection must be housed in an
appropriate locality negotiated with the building owner
You also get to supply a set of “building rules”. I would put anything about installation practices in here (although I’m not sure if they are binding).
Some of the timeframes mentioned in this document are scarily short!
Apparently they can access the equipment without notice if they need to to “maintain service”. Not sure if you are required to have someone “on-call” to let them in!