Voice over Internet Protocol or VoIP is about a decade old technology that is gaining popularity among individual subscribers and businesses. In conventional systems, phone calls are made using telephones or handsets that are connected by phone cables. These calls are routed using the Public Switched Telephone Network (PSTN) carrying a signal from one telephone to the other.
But instead of connecting telephones to the phone cables through phone jacks in the walls, VoIP uses the internet where phones can be connected to broadband devices, adapters or PCs using broadband. With this system, voice is converted into a digital signal and carried over the Internet. Let's take a look at all the options that are available to make calls using VoIP.
When your PC is connected to a phone or another PC on the other end, you can talk like you would on a regular phone. The software with video capabilities will let you see each other (you and the recipient of your call) if it is a PC to PC call and both computers are equipped with cameras. In this case you don't even need a telephone handset.
Your regular phone can be plugged into an adapter which is then connected to a broadband device. Some services will allow you to make calls within their service network only. But there are other services that will let you make calls anywhere. That means you can call local, long distance, international and through mobile devices.
Companies providing VoIP services are focusing on providing unified communication platforms that will include phone, emails, faxes, videos and voice mail capabilities. Their goal is to deliver these capabilities that can be used by all means of communication including handheld devices.