4.2. SMS Messaging
SMS or Short Messaging Service is a standard that was defined in the 1980s for text messaging
on cell phones and other mobile devices. Standard SMS messages are limited to 160
characters and can only be sent over cellular networks, which is one of the main differences
between SMS and Internet-Protocol based messaging services like iMessage, WhatsApp, etc.
SMS service is available on Verizon’s M1 network, but is not available on AT&T’s network.
Please see the QBG96’s
application note for a detailed tutorial on how to send SMS
messages with your device.
4.3. PPP
PPP or Point-to-Point Protocol is a computer network protocol that provides a standard way to
transport multiprotocol data over two directly connected (point-to-point) computers. If your host
device is a traditional PC, Linux, or RTOS environment, PPP is the recommended approach to
use the QBG96.
Internet traffic does not require a physical connection between two
communicating devices. The protocol used for Internet traffic, TCP/IP, is a packet-switching
network, meaning that the data being transmitted is broken up into several packets before being
routed on the network. The packets are all routed to the same address, but may take a different
route to get there. As a result, packet-switching networks do not rely on a single physical
connection between the two communicating devices. PPP has a wide variety of uses since
there are many physical mediums for point-to-point connectivity, such as simple serial cables,
mobile phones and telephone lines. For example, PPP provides a way for Internet service
providers (ISPs) to use a physical connection, such as a phone line, to route Internet traffic to
the customer’s residence. PPP can also be used to set up a secure connection, such as an
encrypted Virtual Private Network (VPN).
Please see the QBG96’s
application note for a detailed tutorial on how to send and receive
data with your device using PPP.
4.4. TLS Using AWS IoT
TLS or Transport Layer Security is sometimes referred to as SSL/TLS because TLS was
preceded by SSL (Secure Sockets Layer). TLS is the standard security technology for
establishing an encrypted link between a web server and a browser. This link ensures that all
data passed between the web server and browsers remain private. SSL is an industry standard
and is used by millions of websites in the protection of customer online transactions.
Please see the QBG96’s
application note for a detailed tutorial on how to
configure the modem and set up a secure connection with Amazon Web Services (AWS).
4.5. GNSS (GPS) Location Services
GPS or Global Positioning System is the Global Navigation Satellite System (GNSS) technology
used in the United States and owned by the U.S. government. It provides geolocation and time
information to a GPS receiver anywhere on or near the Earth where there is an unobstructed
line of sight to orbiting satellites.
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