Using Messaging, you can receive incoming faxes through the inbound (native) fax and a third-party fax server.
When using the inbound (native) fax mode, the Messaging system acts like a fax server, and you do not need a third-party fax server. If the recipient belongs to a Class of Service (CoS) that allows fax, the user receives the fax in the inbox of the configured email address.
The administrator can configure Messaging to detect and transfer faxes to a third-party fax server or to receive and forward faxes to an email inbox you specify. Faxes are stored in the user email inbox and not on the voice mail server and are therefore not accessible through the TUI. Callers can send faxes directly to a Direct Inward Dialing (DID) or extension.
When an incoming fax is recorded and sent to a user, then the attached fax message is a PDF file or a TIFF file. The maximum transmission length for an incoming fax is 90 minutes. If the fax transmission exceeds the 90-minutes limit, the fax transmission is stopped. The fax message to the user contains the pages sent in the first 90 minutes of the transmission, and the sending fax machine is notified of the number of pages sent successfully.