TEK INDUSTRIES

                                www.tekind.com

                    INCREASE PAYPHONE REVENUES & STOP FRAUD
                    WITH THE TEK 1192 ANTI-FRAUD AMPLIFIER

       From The Company That Brought You The Original Payphone Amplifier

                Complies with the NEW ADA & Telecom Legislation

--RED BOX FRAUD--

Do you think that "Red Box" fraud is not popular anymore? Try doing a search
of the internet for pages with "Red Box" and you will find hundreds of sites
that give detailed instructions on building a "Red Box" device, places to
purchase a "Red Box," and even ways to fraud electronic operators. Coin call
fraud is still very extensive and very expensive for payphone providers.

The Model 1192 prevents fraudulent coin calls attempted by a "Red Box" device
by continuously monitoring the handset to detect "Red Box" generated coin
tones. When a coin tone simulation is detected, the Model 1192 opens the
transmitter leads while generating a 400 Hz high pitch squeal tone until the
station goes back on-hook, at which time the Model 1192 automatically resets.
"Red Box" fraud can occur at stations for months and be completely undetected
unless the Model 1192 is installed.

--FRAUD ATTEMPT COUNTER--

The Model 1192 is equipped with fraud attempt counter software which
accurately tracks the number of fraud attempts made on the phone. This
information can be collected identifying your phones that have been subject
to fraud attempts allowing you to maximize station revenues and profits by
reducing fraudulent coin calls.

--PIN FRAUD OPTION--

The Model 1192 prevents fraudulent calls attempted through the use of a pin
or metal object commonly referred to as "Pin Fraud." When a metal object is
inserted in specific parts of the handset, and electrical short to ground
condition is created allowing for calls to be completed without payment. The
Model 1192 will detect this condition and open the mouthpiece connection
while generating a 500 Hz high pitch squeal tone. The Model 1192
automatically resets when the station goes back on-hook.

The Model 1192 features a side tone adjustment to provide the best possible
call quality to your customers. The side tone adjustment feature is
conveniently controlled in the field from the dip switch settings on the
amplifier module. The Model 1192 provides the standard setting and a high
noise setting for busy roadside installations or noisy environments. The side
tone adjustment feature optimizes call quality for your payphone leading to
increased usage and higher revenue.

The TEK Model 1192 Anti-Fraud Amplifier is available in kits with the TEK
Loud Buttons or as a stand-alone module.

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              WHO USES YOUR PAYPHONES, CRIMINALS OR CUSTOMERS?

                       TEK 892 PAGER ACCESS CONTROLLER

                CRIMINAL USE OF YOUR PAYPHONE COSTS YOU MONEY!

Criminals commonly employ the use of payphones and pagers as a way of
communicating to conduct illegal activities. The combination of payphones and
pagers provides criminals with an untraceable communication network to
operate their illegal transactions or acts.

Criminals tend to repeatedly use the same payphone stations to operate their
illegal businesses. These payphones and enclosures experience a dramatic
increase in vandalism which costs the station owner money. Criminals spend
hours at your payphone receiving incoming calls which prevents legitimate
revenue producing calls.


                 INCREASE STATION REVENUES AND FIGHT CRIME

Installing the TEK Model 892 Pager Access Controller helps to prevent
criminal activity from taking place at you payphone station by restricting
access to pager systems and keeps your station collection revenue from
outgoing calls. The Model 892 is a line powered device which is conveniently
field installable and mounts in the upper housing of the payphone.

When installed, the TEK Model 892 is active for the entire duration of every
call. After a user dials a phone number, there is a momentary loss of talk
power. The Model 892 detects this condition and disables the keypad for the
remainder of the call to prevent access to a pager system. The Model 892
automatically resets after the station goes back on hook for 3 seconds.

The Model 892 also monitors the handset to detect DTMF tones attempting to be
entered through the transmitter. To restrict this activity, the Model 892
mutes the transmitter for 15 seconds preventing DTMF tones from being entered
to restrict access to a pager system. The Model 892 automatically enables the
transmitter after 15 seconds and will continue monitoring for DTMF tones
until the station goes back on hook for 3 seconds.

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                       CAN WE INCREASE STATION REVENUES?
                     CAN WE PREVENT FRAUDULENT COIN CALLS?

                              YES,THE ANSWER IS:

                           TEK 592 RED BOX DETECTOR

The Model 592 Red Box Detector continuously monitors the handset to detect
"Red Box" generated coin tones. The Model 592 is a line powered device which
typically installs in the upper housing of the payphone. When installed, the
Model 592 will prevent fraudulent coin calls attempted with a "Red Box"
device.

                       "RED BOX" DEVICES ARE EVERYWHERE

"Red Box" fraud is still very popular. In fact, a search of the internet for
pages with "Red Box" will reveal hundreds of sites that include detailed
instructions on how to build a "Red Box", places to purchase a "Red Box", and
even ways to fraud electronic operators. Coin call fraud remains very
extensive and very expensive for payphone providers.

                  STOP "RED BOX" FRAUD AND INCREASE REVENUES

The Model 592 Red Box Detector is active for the entire duration of every
call. Any coin tone simulations that are attempted to be entered through the
handset transmitter are detected by the Model 592. Upon detection of a coin
tone simulation, the Model 592 mutes the telephone handset until the station
goes back on hook, at which time the Model 592 automatically resets.

                         Made With Pride In The USA

                       Conveniently Field Installable

              Compatible With Most Configurations And Applications