I’m not a netcordia employee but I can’t see how they can do what you ask without a major rethink of strategy. The NetMRI is an agent less network tool. This means they leverage what the network equipment itself can do. If you have routers from a supplier that doesn’t support SAA or a similar protocol, it’s hand are tied.
From the site you mention, “Web-delivered Remote Agents and Satellite Servers enable connection testing between two remote systems to test specific network paths.” So you would have to provide a PC or server on the endpoint Vlans for every subnet being used for voice. Netcordia could possibly put this agent on the NetMRI but without distributing it to servers, it would only be able test to and from the MRI itself and not from the call center to the users which is what you normally want.
If Netcordia decide to use agents, that makes it a whole different tool.
Bob Munson (Eqalis)