Hi, Probably a bit late for you however it may help others. I have a Bosch Solutions 16 Plus and was told by various alarm companies that I needed to upgrade the motherboard to the 6000 wireless system, replace the controller and pay for an Ifob membership. All up around $800. Connected to the NBN with TPG last week. As luck woud have it the Bosch comms line was connected to the same phone outlet the NBN box was being plugged into. The Tech had to disconnect the Bosch comms cable to connect the NBN however I fitted a standard RJ12 phone connector to it and plugged it into the second Phone outlet in the TPG modem (it has two) and Voila!!, received a text message from the System advising that Comms were restored and tested normal. Obviously you need the phone as part of your NBN package and I left the ADSL line filter connected in the Bosch control box. Hope this helps others ... View more