objective:
explain: what does it mean by VOIP
discuss: how you use this method of communication.
evaluate: why you use this method of communication
VOIP means- voice over internet protocol is a category of hardware and software that enables people to use the internet as the transmission medium for telephone calls by sending voice data in packets un IP rather than by traditional circuit transmission of the PSTN.
EQUIPMENT-
- ATAs ( analog telephone adapters) this is an important device used to act as a hardware interface between an analog PSTN telephone system and a digital VOIP line.
- telephone sets- this is a essential for VOIP as it makes up the interface between the person and the services. It is both of input and output device.
- VOIP routers- this is a router of device used for internet connection. A router is also commonly called gateway although technically a router and a gateway are not the same thing.
- PC headset- this is a resemble telephone but they connect to your computer through USB or a sound card. They work together with a soft phone allowing people to use VOIP more comfortably .
how do you make a VOIP call?
The most primitive form of VoIP uses your PC as a telephone and we provide you with a software telephone – a softphone – to do this. This displays a model of a telephone on your screen and you simply type the number to be dialled in or click on the phone’s directory to dial the number.
Skype- an audio and video calls, group calls, as well as text and voice messaging cover your telephony basics. More advanced tools such as call forwarding, sending SMS messages, Caller ID, a Skype number, calling landline or mobile phones worldwide, and video conferencing can be enabled with Skype Credit or a subscription plan.
oovoo- is an instant messaging and voice/video calling service featuring instant messaging, text chat, video calls and messaging, and 12-way video conferencing. Additional interesting features include the ability to invite non-ooVoo users to calls (prompting them to sign up and install), create browser-based "Call Me" buttons, as well as file and screen sharing, great for collaborative work or online meetings.
Discord- this is a newish VoIP app that's gotten a lot of buzz from gamers, currently the preferred choice of a number of Twitch streamers. One reason why gamers are rallying to Discord is its minimal requirements -- users don't need to download a program or host a server, as everything in Discord can be set-up and run using your browser (while offering more options with an installed client).
Advantages;
- Inexpensive and easy to use since it is simple, upgrading is relatively simpler too.
- For a monthly fee people have unlimited free calls within a geographic area.
- VOIP account just like your email ID from any where in the world as long as you have an internet phone
- VOIP costs about half the cost of traditional phone services and it seems that the taxes and surcharges are much lower, also your bill is easier to understand and it can be viewed via the internet
Disadvantages:
- Loss of service during outages
- Some times during calls there may be periods of silence when data is lost while it is being unscrambled.
- latency and traffic
- No standard protocol is applicable.
http://www.streetdirectory.com/travel_guide/120670/voip/advantages_and_disadvantages_of_voip.html
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