Thanks for the link, AndrePa, but I think Aussie88 is looking for a way to take a trunk and connect it to the input of the paging amp. Avaya currently uses a UPAM (Universal Paging Access Module) or a Page-Pal. These both allow you to interface either a Trunk port, or a single line station port to the input of an amp. Or Google on Trunk Page Adapter, I'm sure Viking probably has something.