Internet Fax Functions311• The level of security for Internet communications is low. It is recommendedthat you use the telephone network for confidential communications.• Voice communication is not supported over a LAN.• Internet Fax delivery might be delayed due to network congestion. Use Inter-net Fax transmission that bypasses the SMTP server, a public telephone linefax, or IP-Fax whenever communication time is a concern.• If a power outage lasts about an hour, or the machine is disconnected fromthe power outlet for about an hour, documents stored in the fax machine'smemory are deleted. If any document is deleted, the Power Failure Report isautomatically printed out when the main power switch is turned on. Use thisreport to check which documents were deleted. Simply turning off the powerby pressing the operation switch does not delete stored documents. See“Troubleshooting When Using the Facsimile Function”, Troubleshooting.• You may not be able to send large files as e-mail, depending on e-mail envi-ronment conditions.• When available memory is low, you may not be able to send Internet Fax doc-uments.• Because the machine sends documents as e-mail messages with an attachedTIFF-F image, viewer applications are required in order to view documentswhen they are received on a computer.• With a large volume of document, it may take some time before transmissionstarts. This is due to the time the machine requires to convert the data in mem-ory.Referencep.33 “T.37 Full Mode”p.41 “Paper Size and Scanned Area”p.73 “Bypassing the SMTP server”“Troubleshooting When Using the Facsimile Function”, TroubleshootingFunctions Not Available by E-mail TransmissionThe following functions are supported with standard fax transmission, but notwith Internet Faxing.• Immediate Transmission• ID Transmission• Transmission by SUB Code• On Hook Dial• Manual Dial• JBIG Transmission• ECM (Error Correction Mode)
