VoIP ( Voice over Internet Protocol)

A category of hardware and software that enables people to make telephone calls via the Internet. Voice signals are converted to packets of data, which are transmitted on shared, public lines, hence avoiding the tolls of the traditional, public-switched telephone network (PSTN).

VoIP applications can generally be used with a simple microphone and computer speakers, but IP telephones or VoIP boxes can also be used, providing an experience identical to normal telephoning. In the past year, the quality and reliability of VoIP technology has improved to the point that vast numbers of users have abandoned their standard telephone contracts entirely, in favor of VoIP.

Why VoIP?

Telecommunications carriers around the world have already introduced IP into their networks because it provides economic benefits over traditional telecommunications networks.

• Greater Efficiency :

The conventional circuit-switched technology of the PSTN requires a circuit between the telephone company’s switch and the customer’s premise to be open and occupied for the entire duration of a call, regardless of the amount of information transmitted. In contrast, on IP networks, all content ( whether voice, text, video, programs, or numerous other forms of information) travels through the network in packets that are directed to their destination by diverse routes, sharing the same facilities most efficiently.

• Lower Cost :

IP systems will offer a more economical means for providing communication connections. Also (and this is one of the sources of concern on the part of incumbent voice long distance carriers) Internet technology makes available to anyone with a personal computer and modem the ability to bypass the long distance PSTN.

• Higher Reliability :

In some respects, IP networks also offer the potential for higher reliability than the circuit-switched network because IP networks automatically re-route packets around problems such as malfunctioning routers or damaged lines. Also, IP networks do not rely on a separate signaling network, which is vulnerable to outages.

• Supporting Innovation :

IP is a nonproprietary standard agreed on by hardware and software developers, and is free to be used by anyone. This open architecture allows entrepreneurial firms to develop new hardware and software that can seamlessly fit into the network. In contrast, the circuit switched network operates as a closed system, thus making it more difficult for innovative developers to build and implement new applications.

E-mail us at info@satnetcom.com for more informations about VoIP.

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