Voice over IP driven networks come with their own advantages,
as well as disadvantages. Knowing what they are can help you make a smart
decision on what system is best for you.
Traditional vs. Voice Over Internet Protocol Solutions
Traditional networks require that the users set aside
circuits or channels for every call with a 64 kb bandwidth in use for the
channel. This traditional system worked quite well, although with some
downsides. Some of the disadvantages include the high expense of equipment
purchase and installation, as well as maintenance. Competition led to the lowering
of prices and some trends, such as home agents, have made dedicating a line to
calls quite prohibitive.
VoIP was the solution that makes the network resource use
more efficient. Users can use broadband Internet in voice and data. This
additionally offers the capacity to compress audio, thereby enabling the
reduction of bandwidth needed in making calls.
The typical audio codec thats non-compressed is G.711,
while the audio codec thats compressed is the G.729. While the differences
between the two may not be very noticeable, the G.729 works quite well. One of
the noticeable differences is the processing of music of G.729 compared to that
of G.711. The G.711 phone network has inadequacies in passing music thats high
The G.729, that compresses audio, may sometimes result in
the music sounding slightly distorted. For instance, on-hold music where the
audio codec used is G.729 may sound garbled or broken, but as once the music
ceases and one begins speaking then all is well. Therefore, the complaints are
not anything that can be amended, as its how the coder was designed.
Questions and Solutions
With the increased use of VoIP and it becoming more popular
with individuals and businesses, there has been an extensive knowledge base
developed by experts and providers to answer questions that many have.
Some of these questions include how voice over internet
protocol affects call security, the workings of voice over VPN, questions on
soft phones, SIP phones, SRTP or encrypted audio, SIP over MPLS, SIP trunks and
a whole range of questions on voice over internet protocol technology. This
body of knowledge also includes implementation and secure design of some
complex VoIP services and other more traditional DS3 and T1 solutions.
Each technology has its benefits, strengths and limitations,
and users should be aware of all these so that they can make informed choices. Complete
packages for businesses should be able to give a competitive advantage uniquely
to the specific company and address security concerns and other voice over IP
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