Installing USB modems
You can install USB modems to send SMS messages into
your system. The
advantage to using USB modems is that you can install many modems because
you are not limited by the number of physical serial (COM) ports in the system.
The disadvantage is that USB modems require you to install a driver that
registers a serial port in the system. This driver can be corrupt and
can cause problems. This guide gives you instructions on how to use USB modems.
When you install the driver for an USB modem or an USB to
RS232 data cable, a new serial port is registered in the system. This serial
port should be configured in Ozeki NG SMS gateway when you setup
the GSM Modem service provider
connection. To find out what is the port name that belongs to the newly
installed modem, you should check the available ports in your system prior
to the installation of the USB modem or USB data cable driver.
Check available ports prior to USB driver installation
To check the available ports, please open the "Windows
control panel", click on "System", then select the "Hardware tab" in the
System properties windows. Then click on the "Device Manager". In the Device
manager, please open the ports section to see a list of serial ports prior
to the USB modem installation (Figure 1).
Figure 1 - Determine available ports before installation
Install USB driver
The next step is to install the USB modem or USB data cable
driver. Then you should plugin your USB modem or phone to your computer
Figure 2 - Install USB driver
Check available ports after USB driver installation
After you have installed your USB modem or USB data cable
driver your system properties windows will show a new serial port in your
system (Figure 3).
Figure 3 - USB serial port
Configure this serial port in the system.
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