Internet Telephony Explained

your company network as the backbone forit is to the cubicle next door in head office.
making telephone calls is not a new concept, inIssues arose with internet telephony because of
fact it has been around for several years butthe poor call quality which was frequently
recent developments in technology has increasedexperienced by users. Call quality has dramatically
the rate of adoption of internet telephony.improved with better technology and data
Internet telephony goes by numerous names andtransmission techniques such that call quality is in
acronyms – VOIP, Voice Over IP (IPmany instances just as good as a land line call. A
stands for Internet Protocol), IP telephony,further drawback was the inability to make
broadband telephony and VoBB (Voice Overtelephone calls if the internet connection was
BroadBand). Skype is the first widely adopteddown – as internet telephony relies on the
application which uses the internet backbone asinternet backbone to transmit the call, if you
the basis for transmitting voice and video call data.cannot access the internet for whatever reason,
The advantages of internet telephony areyou cannot use the internet telephony service.
numerous, not least the cost savings associatedThis has led to criticisms of VOIP for its lack of
with running telephone calls over the sameredundancy but installations frequently run hand in
network as the company network and internet.hand with a fixed line system and still deliver
By combining the two applications – use ofsignificant cost savings.
the web and making telephone calls – onlyModern internet telephony systems use bandwidth
one network is required instead of two separatewith a high degree of efficiency and as this limiting
telephony and IT networks. In a wider context,factor has now been removed, more and more
telephone and internet service providers (ISP's)businesses are performing the migration of their
can use their existing network, and networkbusiness telephone service to IP based services. It
security , infrastructure to deliver services tois not just the cost savings which can be
customers. This is why it is so common to findachieved which is the business driver but the
cable/telephone/internet access all bundledfunctionality which can be delivered. Internet
together from companies in the business andtelephony encompasses much more than voice
domestic customer markets.calling and includes video and web conferencing,
The cost of making calls also drops significantly asinteraction with email systems, multiple and
the internet (which is free) is simply being used toanywhere/any device utility for making and taking
transmit your call in the form of data which iscalls, faxes and emails and much more. This is
reassembled at the other end of the connection.referred to as “unified
A user simply needs to pay for internet accesscommunications” - treating any
and this bypasses the need to pay a telephonecommunication which can be made or taken using
company for the service. The cost savingsany device and internet telephony provides the
become even more apparent when you considerbasis for this merging of communications
that the internet backbone is just as capable oftechnology and application.
delivering your voice or video data to Australia as