Introduction
The way we make phone calls is changing. In
fact in many circumstances things have already changed. Take long
distance calls for instance, many service providers are already using a
technology called Voice Over IP or VOIP for short. If you have never
heard of VOIP before, then the following article will change the way you
think about how long distance phone calls are being made now, and about
how all phone calls will be made in the future. Voice Over IP (VOIP) is
a method for turning analogue audio signals into digital data that can
be transferred over the internet.
You may be asking yourself how
this is useful. Well think about it for a few seconds. If it is possible
to turn analogue signals into digital data, then VOIP can turn a
standard internet connection into a method for placing phone calls
anywhere in the world virtually free, except for your internet service
fee, enabling you to bypass the phone companies entirely.
Voice
Over IP (VOIP) has the potential to completely revolutionise the way the
worlds phone systems operate. There are many VOIP service providers
that have been around for a while, and are growing steadily. Now the
worlds leading telecommunications operators are waking up to the endless
possibilities of this new technology, setting up VOIP calling centres
around the world and promoting the sales of Voice Over IP phone systems.
Making a call
With VOIP phone systems it is possible to make a call in one of three ways:
ATA (gateway)
- The simplest way to make a VOIP phone call is through the use of
ATA's (analogue telephone adaptor) sometimes called gateways. These
devices enable you to make use of your existing standard analogue
phones. You simply plug your standard handset into the ATA (gateway)
then connect the ATA to your computer or your internet connection,
enabling you to make VOIP calls. An ATA takes the analogue signal from
your standard phone and turns it into a digital signal that ready for
transmission over the internet. Some ATA's (gateways) come with
additional software that is loaded onto a host computer, enabling you to
configure it for VOIP accurately.
IP Phones - These
handsets look just like normal standard handsets. They have an RJ 45
Ethernet connector instead of the standard RJ 11 connectors. These
phones have all the necessary software and hardware to handle VOIP calls
already built in them. They connect directly to your router, providing a
very fast and cost effective entry into the world of Voice Over IP.
Computer to computer
- This is the easiest way to make use of the VOIP technology. There are
many companies offering cost effective software that you can use for
this type of VOIP. Usually the only charge you pay is the monthly one
from your internet service provider, even for long distance calls. All
you need is a microphone, speakers, a suitable sound card and a fast
internet connection.
Chances are that you have already made a VOIP
call without even realising it. The major phone companies already use
VOIP to route thousands of long distance calls through a circuit switch
and into an IP gateway. This is then received by a gateway at the other
end and then routed to another local circuit switch. More and more
companies are installing VOIP phone systems, and the technology will
grow and grow until it finds its way into every business and household
across the globe.
VoIP Features
Because with VOIP you
can make calls from anywhere you have access to a broadband connection,
users can take their IP phones or ATA's with them on trips and still
have access to what is essentially their home phone.
Some people
use a softphone to access their VOIP service. A softphone is a specially
developed software application that loads the VOIP service onto your
desktop computer or laptop. Some even have an interface on the screen
that looks like a traditional phone. These softphone applications allow
you to place VOIP calls from your laptop; anywhere in the world you have
access to a broadband connection.
Most traditional phone
companies charge you for extra features that are added to your account.
With VOIP service providers these usually come as standard. Features
such as:
1. Caller ID
2. Call Waiting
3. Call Transfer
4. Repeat Dialling
5. Return Call
6. Three-Way Dialling
Some
VOIP service providers also offer advanced call filtering features.
These additional features allow you to decide how calls to a specific
number are handled by using caller ID information. They allow you to:
1. Forward the call to a particular number
2. Send the call directly to voicemail
3. Give the caller a busy signal
4. Play a "not-in-service" message
Many
VOIP services also allow you to check your voicemail over the internet
or attach messages to an e-mail that is sent to your computer or PDA.
It's best to check with VOIP phone system suppliers and service
operators exactly what features they offer as package and service prices
vary greatly.
There are many other cost saving benefits that
arise from a streamlined VOIP phone system network. For the network
administrators, a VOIP phone system means they only have one network to
maintain instead of two. The portability of the phone system is also
greatly simplified. This is because most VOIP phone systems can be
configured using a web interface, which can be managed by the network
administrator. The MAC (move, add, change) process is made much easier,
and you will not have to call your system/service provider for every MAC
you carry out. All this means lower ongoing costs for your company.
Another
cost saving for companies who implement a VOIP system is, because
multiple offices, no matter where they are in the world are seamlessly
connected, they can share many of the features VOIP can offer, such as:
1. One single receptionist
2. Auto attendant facilities
3. Voice mail system
Choosing a VOIP phone system
If
you have decided that a VOIP phone system is the right step for your
company, next you need to determine which of your existing telephone
equipment you are able to keep. The potential cost savings that can be
made through using any existing digital equipment are huge. Many digital
phone systems can be IP enabled using minor hardware additions and
software upgrades.
When shopping around for potential systems you
need to be certain of the features they provide as standard and which
are optional cost extras. You also need to be certain of exactly what is
included with the system. Many suppliers claim to include everything
you need, but standard components can vary from one company to the
other. So you need to sure you are comparing equivalent systems when
approaching potential suppliers.
You will also need to enquire
about the compatibility of existing equipment. The technology used in
many VOIP systems may affect the implementation of any existing
telephone hardware.
You will also need to ensure that any devices
such as fax machines, credit card processors, and security systems etc
can be integrated into your new VOIP phone system. You should make any
potential vendor aware of such devices so they can provide you with a
suitable phone system for your requirements.
Finally, do not try
to save money by buying used VOIP phone systems. Remember VOIP is a new
technology, so even last years equipment is outdated. Also the
installation cost will still apply whether the system is new or second
hand, and the service costs may even be higher due to reliability
issues. To put it simply it just isn't worth the hassle, the higher
secondary costs will wipe out any potential saving.
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