Thanks for responding Michaelt. I’ve set Digi One SP up on the Windows server for a comm port and I can actually see in the “inbound log” that the calls to DID are reaching the fax server but they are not being forwarded to e-mail from there.
I just wanted to confirm with Digi One that I didn’t need to do anything special to the device to ensure that the DID information coming via my phone system which is passing through the Digi One SP was not being stripped or anything.
I wasn’t sure if a particular DiGi One SP profile worked best with fax servers.