“VoIP – the Ins and Outs of Making VoIP Calls” |
| VoIP – the Ins and Outs of Making VoIP Calls Posted: 12 Dec 2010 03:54 PM PST by Costas Kariolis Staying connected with people across the globe is easier than ever before. Improvements in technology allow customers to make calls to landlines through an internet connection, which converts the sound to a digital format which computers can process. Originally this sequence was only carried out through computer to computer connections. Many telecommunication companies still offer this "soft phone" service as a way for laptop users to make calls when they are out of the office. VoIP was first established in 1985, by a group of internet enthusiasts to allow computer to computer calls. VoIP is now a service used all over the world. As with many VoIP based applications, the services offered can be bewildering, so this is a simple outline of how to get the most out of VoIP. All internet phone services work the same way, converting your voice into digital signal before sending the data across the internet. VoIP allows customers to make calls from across the globe without having to pay high charges often levied by landline operators for international and mobile calls. All you need to start enjoying VoIP is broadband internet connection. Dedicated VoIP internet phones or hardware adapters that connect to conventional handsets are available for purchase. A VoIP device can also be fitted to integrate this technology into all office phone systems. In each case, the VoIP hardware or software device converts the speech into computer readable data. This data is then transported across the internet, and converts it back into speech, so a conversation can be held. The internet was not developed with the intention for real-time communications such as voice, but this revolutionary technology has made the transition possible. This result is achieved through a transport later called Datagram Protocol (UDP), and an application layer called Real-time Transmission protocol (RTP). A problem with the internet is that any data sent does not always arrive at its destination, in the order which it was sent. The RTP puts the data in the right order, so all digital signals sent are understood by the recipient. Protocols allow fragments of data to be ignored, if they are not transferred to fast enough to ensure a smooth conversation. Ignoring data is very rarely an issue, as there is usually enough information transferred to make any conversation perfectly audible. The faster the internet connection of both parties, the less likely this is to happen. The use of this service is very cost effective. If you shop around, several services offer unlimited VoIP calls to domestic landlines for a flat fee, and reduced rates for overseas calls and mobile calls. Another phone line can be installed at a competitive rate. An engineer will not be required, whilst setup and rental costs are much lower than traditional phone lines. Call waiting, caller ID and three-way calling, are also available with this service. Any new number you receive will be specific to you, allowing you to connect to a wireless hotspot or plug-in modem, anywhere in the world. Published At: Isnare.com Free Articles Directory - http://www.isnare.com/ Permanent Link: http://www.isnare.com/?aid=660053&ca=Computers+and+Technology This entry passed through the Full-Text RSS service — if this is your content and you're reading it on someone else's site, please read our FAQ page at fivefilters.org/content-only/faq.php |
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