Hello,
Has anyone been able to make this combination work? I could really use some help. I have 8 SIP trunks for the job.

Also, the FaxFinder is not communicating with the 5600. It appears that the 5600 is not listening on port 5060. I have enabled listening (system\ip settings\advanced settings) and set the listening port to 5060 (system\ip settings). But SIP invites show as Port Unavailable in a capture.

We have progress. The 5600 and faxfinder are communicating. However, it all shuts down when T.38 begins. The PBX says the requested port is unavailable. Is Mitel using non standard ports for T.38? If so, is there a way to change the port used?