VoIP (Voice Over Internet Protocol) - An
Overview
You've probably at least
heard of the word "VoIP", even if you
didn't quite understand what all the
excitement is about. VoIP stands for
"Voice over Internet Protocol" and is
going to change the way you think about
making long distance phone calls.
Basically, VoIP technology turns analog
audio signals (i.e. the sounds you hear
when talking on your regular telephone)
into a digital signal (which is then
transmitted over the Internet.)
So why is VoIP revolutionizing the
industry?
Because it means that by getting your
hands on some of the free software
that's available right now, you can
totally bypass your telephone company,
and start making long distance phone
calls for free! This revolutionary
technology has the ability to totally
change the phone system of the entire
world! Perhaps you've seen television
commercials for one of the pioneers of
VoIP - Vonage. Vonage brands itself as
the "broadband telephone company" and
offers enticing perks to customers who
switch to it's VoIP service such as
low-cost 800 numbers and very cheap
international rates (fees are waived
from the U.S. to Canada, and
international calls are as low as .03
cents a minute to overseas locations
such as Paris).
But Vonage isn't the only company who is
interested in harnessing the power of VoIP. AT&T
is setting up VoIP calling in several areas of
the U.S. and there are other major VoIP players
on the scene as well, such as Skype, who is
relying on viral advertising to get the word
out. Even some regional cable television
companies are now offering VoIP telephone
service at deep discounts to their customers.
One of the interesting components about VoIP is
that there's not just one way to make a VoIP
call. There are actually three ways to make a
VoIP call:
1) VoIP via ATA: is the most commonly used VoIP
method right now. Using the ATA (analog
telephone adapter), you connect your regular
telephone to your computer or Internet
connection. The ATA is an analog-to-digital
converter and it takes the analog signal from
your phone and converts it into digital data and
transmits it over the Internet so you are able
to make VoIP calls. This is how Vonage and
AT&T's CallVantage handle VoIP calls. The ATA is
free with their services. And using an ATA for
VoIP is so simple that anyone can do it. Open
the box, plug the cable from your phone into the
ATA instead of the wall socket, and you're ready
to begin making VoIP calls. Depending on your
computer, where you live, and what type of
Internet connection you have, you may need to
also install VoIP software onto your computer,
but this shouldn't be too difficult for most
people.
2) VoIP via IP Phones: VoIP phones look just
like a standard telephone. They have a handset,
cradles and buttons. But an VoIP phone uses an
RJ-45 Ethernet connector instead of the standard
RJ-11 phone connectors. VoIP phones connect
directly to your router and all the hardware and
software is already built inside to handle your
VoIP calls. Look for Wi-Fi IP phones to be
available in the near future, which will allow
you to make VoIP calls from any Wi-Fi hotspot.
This will allow you to take your VoIP phone with
you when you travel, and stop in at any Internet
café, hotel or other location where you can use
your Wi-Fi laptop, and you can use VoIP
technology to "phone home" from anyplace in the
world.
3) VoIP via Computer-to-Computer: This is
arguably the easiest way to use VoIP. There are
no fees for long distance calls and there are
several companies offering free or low-cost
software right now for you to make use of VoIP
technology. All you need is the software, a
microphone, speakers, a sound card and a
broadband or cable DSL Internet connection, and
you can start using VoIP service right away.
Except for your normal monthly ISP fee, there is
no charge for any computer-to-computer VoIP
call, no matter how far away they are.
www.skype.com is one such VoIP service. Chances
are, you've already been using the VoIP
technology without even being aware of it, any
time you've made a long distance telephone call
recently. Many of the major phone companies are
already using VoIP technology to reduce their
own bandwidth. It's a simple matter of routing
thousands of phone calls through a circuit
switch and into an IP gateway. Once received on
the other side of the gateway, the VoIP calls
are decompressed, reassembled and routed back to
a local circuit switch.
VoIP telephony is the wave of the future.
VoIP technology makes sense in terms of ROI,
from both an economic and infrastructure point
of view. It may take some time, but eventually
all of the current circuit-switched networks
that are in use today will be replaced by
packet-switching VoIP technology. More and more
businesses are already installing VoIP systems,
and as VoIP technology makes its way into our
everyday language, our lives, and our homes, it
will continue to grow in popularity. According
to Forrester Research, nearly 5 million U.S.
households will have VoIP phone service by the
end of 2006. The two biggest advantages of VoIP
for home users are price and flexibility.
Currently, most VoIP providers offer calling
plans similar to that of cell-phone companies,
which are commonly called "minute-rate" plans,
for as little as $30 a month. And as with
cell-phone plans, you can also get unlimited
plans for around $79 a month.
With the elimination of long-distances charges,
unregulated charges, and all the freebies that
come standard with VoIP service, it can actually
amount to a significant savings for you. For
example, you may be paying extra for features
like:
· Call waiting · Three way calling · Call
forwarding · Caller I.D. · Repeat dial · Last
call return with VoIP
These services come standard. Plus there are
some advanced features that make VoIP something
worth looking into. With some VoIP carriers, you
can set up call-filtering options and actually
have some control over how calls from certain
numbers are handled. For example, you can:
· Forward the call to a particular number · Send
the call directly to voicemail · Give the caller
a busy signal · Play a "not in service" message
with most VoIP services.
You can also check your voice mail on the
Internet, or attach messages to an email that is
sent directly to your computer or handheld. (By
the way, if you're interested in any of these
features, not all VoIP companies are created
equal, so do a little shopping around first,
because VoIP prices and services do vary).
The second benefit that makes VoIP so attractive
for home and small business users is
flexibility. With VoIP you can make a call
anywhere you can get broadband connectivity.
Since the VoIP phones or ATAs broadcast
information over the Internet, they can be
administered by any provider. For business
travelers, this means they can take their VoIP
phone or ATA with them on the road and never
miss a home phone call.
VoIP FAQ:
How does VoIP / Internet Phone Work?
VoIP converts the voice signal from your
telephone into a digital signal that travels
over the Internet. If you are calling a regular
phone number, the signal is then converted back
at the other end. VoIP can allow you to make a
call directly from a computer. If you make a
VoIP call using a phone with an adapter, you'll
be able to dial just as you always have, and the
service provider may also provide a dial tone.
If your service assigns you a regular phone
number, then a person can call you from his or
her regular phone without using special
equipment.
Does My Computer Have to be Turned On for VoIP
to work?
Not if you are making VoIP calls with a phone
and adapter or special VoIP internet phone,
however your broadband Internet connection needs
to be active. You can also use your computer
while talking on the phone.
Is There a Difference Between Making a Local
Call and a Long Distance Call?
Some VoIP providers offer their local service
for free, normally only charging for calls to
non- subscribers to the VoIP service. Some VoIP
internet telephony providers charge for long
distance calls to numbers outside your calling
area, similar to existing, traditional wireline
telephone service. Other VoIP providers permit
you to call anywhere at a flat rate for a fixed
number of minutes. Your VoIP internet telephony
provider may permit you to select an area code
different from the area in which you live. This
means that if your VoIP provider charges for
long distance, then charges could be based on
whether you call within your area code rather
than geographic area. It also means that people
who call you may incur long distance charges
depending on their area code and service.
Can I Take My internet Phone Adapter with me
when I Travel in order to use VoIP?
You may be able to use your VoIP service
wherever you travel as long as you have a
broadband Internet connection available. In that
case VoIP service would work the same as in your
home.
How Do I Know If I have a VoIP Phone Call?
The phone will ring like any other call.
Additional Considerations for VoIP service:
If you're considering replacing your traditional
telephone service with VoIP, there are some
possible considerations you should be aware of:
Some VoIP services will not work during power
outages and the VoIP service provider may not
offer backup power. It may also be difficult for
some VoIP services to seamlessly connect with
the 911 emergency dispatch center or to identify
the location of VoIP 911 callers. In May 2005,
the FCC ordered providers of Internet-based
phone calls to certify that their customers will
be able to reach an emergency dispatcher when
they call 911. Dispatchers also must be able to
identify the caller's phone number and location.
You can review additional information about VoIP
and 911 considerations at www.911voip.org VoIP
providers may or may not offer directory
assistance/white page listings. Aspects of these
considerations may change with new development
in Internet Voice technology. You should always
check with the potential VoIP service provider
to confirm any advantages and limitations to the
VoIP service they offer.
About The Author
To provide reliable VOIP
information, David Dunlap has
created a comprehensive resource
directory at
http://voipservicepro.com
where all of your VOIP questions
can be answered.
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