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Setting Up the FaxPress Premier Digital
15
The FaxPress Premier Digital cannot be connected directly to the public
telephone T1 network.
A CSU is highly recommended. CSUs provide line conditioning,
loopback and diagnostic capabilities. The signals present on a T-1 are
susceptible to distortion as loop length increases and various types of
interferences are encountered. The CSU reinforces these signals, keeps
track of errors, and provides test modes to help resolve line issues.
Many CSUs also provide an especially useful "keep alive" feature which
will keep the T-1 link up even if your network interface device goes
down. Your T-1 line’s activation is detemined by customer premises
equipment. That is, your carrier will turn off your T-1 if the central office
detects the network interface inactivity on your end. Having a CSU in
place helps to avoid calls to your carrier to ask them to re-enable a T-1
shutdown when equipment inactivity on your end is detected.
DNIS String Information Requirements
To use the Premier’s automatic inbound fax routing feature, DNIS string
information from your T-1 line is required. This includes number of
DNIS digits, total length of the string including ANI digits (if any), and
other characters. Contact your T-1 provider for DNIS string information.
You can also use the Premier’s dtmf.log file diagnostic tool to determine
your DNIS string information. See
Automatic Routing and
Determining the Number of Mailbox ID Digits in the Administrator’s
Guide for more information.
PBX Requirements
The FaxPress Premier Digital can be integrated with variety of digital
PBX systems. The Premier Digital must receive the DNIS digits exactly
as they are sent from the T1 line, with no digits added or removed by the
PBX system. Your PBX may already be configured to pass only the T-1
line digits, but if not, you’ll need to program it to pass the T1 line’s DNIS
digits through to the Premier without changing them. Once the Premier
is up and running, see
Automatic Routing in the Administrator’s Guide
for more information.