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The Evolution of Integrated T1 Service
Friday September 26, 2008,
06:43 pm ET
CEDAR HILLS, Utah, Sep. 26 /Patrick Oborn/ --
Business broadband, its price, and who can afford it, are changing. Every day an increasing number
of business are finding the new broadband services made available to them by the "new" telecommunications
companies that are emerging from the latest round of mergers and acquisitions. Overlapping networks
are being consolidated into bigger and leaner footprints, lowering the cost of dynamic integrated
digital signal 1 (DS1) service to the price range of about five regular phone lines. Small to medium
size business can now afford services once reserved for the Fortune 1000 companies.
Min Lieu owns a small insurance agency in Maine. Five years ago he signed up with
XO Communications for a TDM-based integrated T1 line for $870/month, which did not
include local or long distance calling. Recently, he was offered XO's version of
a dynamic circuit called "XO Flex" for half of the price he was already paying.
"I would have been a fool not to take the deal" stated Mr. Lieu. "I'm able to
add headcount with additional voice lines, without any increase in expense or
degradation in high-speed Internet performance."
There are two basic "integrated" DS-1 configurations, analog and digital. The 24-line
bundle in which they come is termed a "trunk". The main difference between analog and
digital trunks is their flexibility. With digital trunks, voice lines not in use
can be dynamically reconfigured to carry data traffic, so they don't sit idle.
Analog trunks on the other hand can not change their function once configured
by the service provider. Data channels remain data channels and the same for
voice channels, even if there is no voice traffic.
The Integrated T1 line has two general flavors; analog and, of course, digital.
The term "trunk" is synonymous with an integrated T1 line, representing 24
bundled DS0 (regular 64KB) channels. Digital trunks form the basis technology
for dynamic integrated lines, which are capable of transporting digitized
versions of voice traffic in addition to regular data packets. This ability
of digital trunks to function in the data realm allows it the ability to
dynamically allocate traffic according to the application, allowing priority
for voice traffic and "re-claiming" that bandwidth for data transfer when the
phone call is completed. This ensures that none of the capacity of the
T1 line is ever wasted.
Recent advances in technology, fostered by competition from growing CLECs, is bringing
integrated T1 services to small business everywhere. And the trend doesn't look like
it will change anytime soon. CLECs continue to grow their networks, offering more
advanced services like metro ethernet, MPLS, and more.
But how much longer will we continue to see improved technology, services, and prices?
It's all in the hands of the Federal Communications Commission, as they have the power
to sqwash the CLECs by proxy. No wonder AT&T and Verizon are the two biggest lobbying
powers in Washington. It makes you wonder what kind of services they would be able to
offer had they plowed that money into R&D instead of politics.
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