Is there a Primary Server Address sip address that can be used in order to enable an e-fax from an on-premise Fax/Printer? I have a Grandstream HT814 that allows a profile setup that I was using with another cloud based phone system, but MS Teams doesn't have the same setup. So I'm hoping to be able to utilize DirectFax app in Teams, but still need access to the local machine. To do that I need a sip address to point to for authentication.
I need to verify this before purchase.