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Owner's of the HP (Hewlett-Packard) All in One Printer HP LaserJet Pro 400 M451DW Laser Printer gave it a score of 0 out of 5. Here's how the scores stacked up:
Use fax on a VoIP service
Voice over internet protocol (VoIP) services are often not compatible with fax machines unless the
provider explicitly states that it supports fax over IP services.
If the product experiences problems getting a fax to work on a VoIP network, verify that all cables and
settings are correct. Decreasing the fax-speed setting might allow the product to send a fax over a VoIP
network.
If the VoIP provider offers a "Pass through" mode for the connection, that will offer better fax
performance on VoIP. Also if the provider has "comfort noise" added to the line, fax performance can
be enhanced if this feature is not enabled.
If faxing problems continue, contact the VoIP provider.
Fax memory contents are retained when there is a loss of power
The flash memory protects against data loss when a power failure occurs. Other fax devices store fax
pages in either normal RAM or short-term RAM. Normal RAM immediately loses data when power is
lost, while short-term RAM loses data about 60 minutes after a power failure occurs. Flash memory can
maintain its data for years without power applied.
Security issues when connecting internal networks to public phone
lines
The product can send and receive fax data over telephone lines that conform to public switch telephone
network (PSTN) standards. The secure fax protocols make it impossible for computer viruses to be
transferred from the telephone line to a computer or network.
The following product features prevent virus transmission:
●
No direct connection exists between the fax line and any devices that are connected to the USB or
Ethernet ports.
●
The internal firmware cannot be modified through the fax connection.
●
All fax communications go through the fax subsystem, which does not use Internet data-exchange
protocols.
ENWW
Use fax
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