Knowing
More About a VoIP System
VoIP which is an acronym
standing for Voice over Internet Protocol refers to system of making telephone
calls via the internet. In this method, voice data is sent just as one does
with a normal email and the voice data is usually sent in separate packets each
of which is coded differently so as to be sent to different destinations. At
the end of their destination, the packets are reassembled in a predetermined
sequence to enable a smooth a continuous flow of voice data and its
accompanying text being received simultaneously.
Through improved technology,
VoIP gateways can be combined with conventional Private Branch exchange (PBX)
functionality that allows organizations to use a controlled intranet in the
quest to cut down excess expenditure in carrying out long distance calls. VoIP PBX then becomes a superb single
network that enables the rapid transfer of both voice calls and at the same
time simultaneously transferring dataat reduced costs by incorporating advanced
CTI features.
Currently a VoIP PBX system is available as a hardware
object or can come in the form of an application software system that you need
to install over your computer system in order to access such services. In order
to make easier management of calls by routing them to and from a subscriber’s
current telephony system, the VoIP PBX‘s equipment, services and servers are
managed to form a system technically referred to as hosted VoIP. However, hosted VoIP is commonly referred to as managed VoIP and therefore the two terms hosted VoIP and Managed VoIP can be
used interchangeably. Such a system has been proven to save companies needless
costs of having to use a lot of funds in the management of the system besides
reducing much dependence on VoIP equipment.
The core component of a
VoIP PBX system is its SIP PBX
server. The SIP PBX server which is
also referred to as a SIP Proxy or Registrar is designed to deal with the setup
of all SIP calls within the network. The SIP PBX is specifically primed to
handle call setup and call tear down and is not responsible in any way for the
transmission and receiving of any audio signals. Instead, the transmission and
receiving of audio is done by another system called the media server which
operates in RTP. Traditionally, all VoIP
solutions employed the use circuit-switched telephony as in the case with the Public
Switched Telephone Network (PSTN) as opposed to the modern hosted VoIP services which employ the use of Packet-switched
telephony to transmit calls over the internet. However, some hosted VoIP calls
made by a subscriber are occasionally routed over the PSTN and directed to the hosted VoIP PBX system.
It is important to note
that the area of VoIP technology is an area that is rapidly evolving with time.
This area has seen an epic transformation and has totally changed the face of
communication. In the year 2004, the Federal Communications Commission (FCC)
announced that VoIP communication just as instant messaging and e-mail sending from
computer to computer was to be free of government regulation. However, the FCC
did not give any ruling concerning voice data sent from a computer to a regular
telephone. With time, such services will gain great popularity and greatly
increase the ease for communication at greatly reduced prices.
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