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What is Skyroute™ ?
SG Wireless
Communications is pleased to provide to the security industry a
new method of communication for the transmission of event
conditions. Unlike traditional methods of communication that rely
on a direct connection, such as regular phone lines, Skyroute
takes advantage of a breakthrough technology called Cellemetry
Data Service.
Cellemetry
enables alarm equipment to be remotely monitored in a secure,
cost-effective manner by using the existing cellular network
control channels. Skyroute therefore offers improved security,
does not utilize phone lines and is not subject to sabotage or
accidental phone outages when lines are down. Combined with
landline communication, Skyroute provides dual path communication
to the central station to ensure that "the alarm always gets
through" in case of emergency.
What is Cellemetry?
Cellemetry is a breakthrough
technology that transmits short messages via the control channels
of the cellular network. The analog cellular network (AMPS) is
divided into 790 voice channels and 42 control channels. The
control channels are used to initiate cellular telephone calls.
Once the call is initiated, the cellular system directs the
telephone call to a voice channel.
The control channels are more robust than
the voice channels for several reasons. First, the control
channels are digital, unlike the voice channels which are analog.
This can be compared to the superior quality of compact disc
versus vinyl records. The control channels also operate at higher
transmission power than the voice channels, giving better
coverage. Finally, the cost of using the control channels is far
less than the regular voice channels. By using the cellular
network, Cellemetry takes advantage of a proven technology used by
millions of cellular users and available virtually everywhere. By
far, the analog cellular network is the biggest radio network in
the world and there are already 200,000,000 packets of data
transmitted over the control channels every day in North America.
This represents an average of only 10% of the maximum control
channel capacity.
How does
Cellemetry work?
The Cellemetry Service
operates in the same manner in which roaming telephones operate in
the cellular system. A roaming telephone is defined as a cellular
telephone operating in any system other than its home system. When
a cellular telephone is turned on outside of its home system it
sends its Mobile Identification Number (MIN) and its Electronic
Serial Number (ESN) to the cellular system via one of the control
channels. Based on the cellular phone number, the local cellular
switch is able to communicate with the "Home System" of the
roaming telephone. It uses the SS7 network which interconnects all
cellular switches in North America to confirm the user is allowed
to use the system and the phone calling features that are
available to that customer. The Cellemetry radio, like a roaming
cellular telephone, sends an ESN and MIN number over the SS7
network, but the MINs are specifically assigned so the MIN and ESN
are routed to a Cellemetry Service Gateway that is also connected
to the SS7 cellular network. The MIN serves to identify the
Cellemetry radio and the ESN is the data field that contains the
Skyroute alarm message.
How the Signal Travels
to the Central Station
When an alarm is triggered
at the monitored site, a signal is sent via Skyroute to the
cellular network and then, via the NA intra-cellular network to
the "Cellemetry Gateway" from there, the signal is sent to Connect
24 Data Communications. The Clearing House then forwards the alarm
to the appropriate central station for dispatch.
Once the alarm has been successfully
received at the central station, Connect 24 returns a confirmation
to the Skyroute unit via the cellular network. Please note that
one alarm signal is sent per transmission. Multiple alarms will
generate multiple transmissions over the cellular network.
Who is Connect
24 Data Communications?
Connect 24, a member of the DSC
Group of Companies, is the service provider created specifically
to offer the Skyroute service to the security industry. Founded in
1997, Connect 24 has put in place a secure facility that meets the
highest standards of UL ratings for the routing of critical
condition signals. Connect 24 also offers a reliable and fully
automated system for the activation of Skyroute Transceivers. This
service is available 24 hours a day, 365 days a year for the
activation of your Skyroute Cellemetry Transmitter. As a routing
center, Connect 24 receives signals from the cellular network and
re-routes them to the central station. Upon receiving a
confirmation of reception from the central station, it returns a
signal back to the Skyroute transceiver over the cellular network.
In doing so, the Skyroute transceiver receives a confirmation of
delivery of an alarm condition or an opening/closing to the
Central Station, eliminating the chance of signal loss.
Contact us
today, and we will be happy to help you get a Skyroute system set
up.
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