(Messaging V7) Is this possible? The manual talks about the 5 slot mainly. I tried adding it as extension 19-22 (4 port) as thats the ports after the 509 (ACS7), and adding it to hunt group 7. Seems the PC tool does not retrieve translations with the Messaging in the right hand slot of the 2-slot carrier. Works fine by itself. There is also no backup card in the 509. This is a test kit for our shop, thats why it has this odd configuration. Do you need extension modules to make this work?