User guide

Multi-Tech Systems, Inc. CallFinder GSM Cellular Gateway 15
Chapter 4 – Wireless CallFinder
Application Options
Prerequisites: A. You must have a valid and activated SIM chip from your wireless service provider
B. Be sure the VOICE/DATA switch is in the VOICE position.
C. You will need a serial-to-USB2.0 adapter if your command computer lacks a serial port (see
step 2).
1. There are four common setups for the CF100FX2-G unit, as shown in the table below. Identify the situation in
which you will use the Wireless CallFinder.
CallFinder connects to...
Interface Purpose
Situation 1 an analog telephone
FXS
Cellular service to kiosk or remote location lacking
land lines.
Situation 2 a PBX trunk port (also
referred to as a CO
port)
FXS
Cellular access through PBX trunk port (to enjoy
free/reduced cellular rates), as well as emergency
phone service in case of PSTN failure.
Situation 3 a PBX station port
FXO
Cellular access through PBX station port (to enjoy
free/reduced cellular rates), as well as emergency
phone service in case of PSTN failure.
Situation 4 a telco POTS line
FXO
Free or reduced-rate access to a local PSTN from
distant cell phones.
The CF100FX2-G is set to FXS by default. Because FXS is the default, if your application fits Situation 1 or
Situation 2 (requiring the FXS interface), you can skip to step 10 and, from there, proceed to the setup
description for Situation 1 or 2. If your application fits situations 3 or 4, proceed to step 2.
2. Connect the command cable between the CallFinder and the command computer. The CallFinder is shipped
with a standard DB9 serial cable, male at one end (for attachment to the CallFinder) and female at the other
end (for attachment to the command computer).
NOTE: If your command computer has no serial ports but has only USB ports instead, you must
obtain a USB2.0-to-Serial adapter (“dongle”) for use between the serial cable and your
computer’s USB port. This USB2.0-to-Serial adapter must have a male end to attach to the
DB9 cable.
3. At the command PC, open the HyperTerminal (or equivalent) communications program.
4. Establish a named HyperTerminal ‘connection’ to the CallFinder.