Fax

Fax still runs the paperwork of healthcare, law and logistics, so Exovo treats it as a first-class citizen: faxes arrive as documents in email and the web client, and sending one is an upload — no fax machine, no analog line (though a gateway line works too).

Receiving faxes

Point a DID at a Fax destination in an inbound rule and pick the receiving user. Incoming faxes negotiate T.38 (the fax-over-IP standard), land in the web client's Fax section, and are emailed to the user as a document. The fax picker only offers users with an email address on file, since email delivery is the point.

Sending faxes

From the Fax page in the web client: choose a recipient (number or contact), upload the document — PDF, TIFF, PNG or JPG, up to 25 MB — optionally add a cover page (from/to/ subject/message), and send now or scheduled. When a cover page is filled in, Exovo renders it and prepends it as the first page of the transmitted fax, at the same resolution and page size as the document. The outbox tracks progress with automatic retries; sent and received faxes file into their respective folders, with drafts and an archive.

Resolution defaults to Fine, with Standard available; page size Letter/Legal/A4; error correction on.

Email-to-fax

With a monitored mailbox configured (Admin → Advanced → Fax — EWS or IMAP), users can send a fax by emailing the document to that mailbox with the destination in the subject line (FAX:+15551230123). Handy for workflows and copiers that only know how to email.

Fax caller ID

Outbound faxes present the user's fax caller ID if set (a per-user field, separate from the voice caller ID), else the system-wide default from the fax settings. The same number stamps the fax header line on every page along with your configured header name.

Reliability notes

Fax-over-IP is only as good as the path: T.38 end-to-end (your trunk provider must support it — most do) is reliable; G.711 passthrough works but is more sensitive to jitter. If a particular destination consistently fails, try resending at Standard resolution — some receiving machines negotiate Fine badly.