Black Box FX150A - Manual (Page 23)

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LINESHARE PRO
4. Using the Lineshare Pro
Computer modems: Unlike fax calls,
inbound computer calls do not
produce any tones; they remain
silent until another modem answers
the call.
The Lineshare Pro works best
when calls from modem-type
devices have the ability to identify
themselves with an identifying tone.
One device that identifies a
modem-type device with a single-
frequency tone is called the
Lineshare Master (FX155A). The
Lineshare Master can produce eight
different single-frequency tones that
allow the Lineshare Pro to route
calls to multiple modem-type devices
connected to a single phone line.
4.2 Lineshare Pro Call Routing
When the Lineshare Pro answers a
call, it listens for specific pre-
programmed tones and
automatically routes the call to the
correct port. If a tone is not present,
the call is routed to the first port in
the Cascade Port Order (depending
on your configuration). You can
then answer the phone, decide the
origin of the call, and route the call
manually if necessary.
4.1 Special Operating Notes
Before operating the Lineshare Pro,
be sure that you understand the
following information about the
telephone equipment that is used
with the Lineshare Pro (if you use a
fax or fax modem card).
Fax CNG tones: Most fax machines
send audible beep tones called CNG
(CalliNG) tones. Once a fax
machine has dialed the destination
fax machine’s number, it generates
this tone while waiting for the
receiving fax to answer. This tone
is a distinct beep that repeats every
three (3) seconds. Most fax
machines produce this tone through
their auto-dial feature, speed-dial
memory position, or by the operator
pressing the fax machine’s start
button after the number is dialed.
However, not all fax machines
transmit this signal when they place
a call. For best results with
automatic switching to a fax
machine, callers should have your
fax number programmed into their
fax machine’s speed-dial memory.