Jjordon,
System Manager is a server-based application that centralizes management functions for the 5000 CP. Each node within a system must physically connect to the System Manager server to allow remote management. This System Manger Server is what generates the CA Certificate that gets loaded into the 5000 in order for it to allow the node to use Secure Socket Layer (SSL) for a secure connection.
So, why would a Call Accounting System need to connect to the System Manager; that is if you have one?
It seems to me that if you want to get the information from multiple nodes and the Call Accounting server can only look at one IP address then you would need a CT Gateway for it to look at and not the System Manager Server which is used for remote System Management.
Thanks,
Te