The short answer to this is no. While some nbn™ services are delivered using a copper cable there is no need to keep an active telephone line to connect to nbn™. In the case of FTTN/B (fibre to the node or basement) nbn™ will use the existing copper cable that runs into your business but you will not need to pay line rental for this line. If your business has not had a copper telephone line installed previously then nbn™ will connect a new copper cable for you. If this is a standard connection then there will be no charge for this connection.
If your business is connected to nbn™by FTTP, HFC or Fixed Wireless no copper will be needed to connect your business to nbn™.
In the case of new developments the nbn™ may charge what’s called the End User New Development Contribution Fee. This is a $300 charges that is applicable to new developments connecting to the nbn™ for the first time. This may be seen in cases of new apartment builds with retail stores on the ground floor or new shopping centre developments. nbn™ make the decision if a property is deemed a new development and the end user contribution charge will be passed through from nbn™ to More and then on to the End User.