Conversations with Internet: VoIP part 2

In part 1 of this series, we saw what VoIP is and how it is synonymous to traditional phone calls. We also listed some advantages of VoIP over traditional phone networks, that it is possible to set up your own VoIP network for use within your company. Finally, we saw that VoIP calls can be automated. One day your devices, such as home protection or a stock market ticker, will make an audio or video call to you via VoIP if something interesting occurs.

In this part, we will see how a VoIP call works, using VoIP calling software / device and a network protocol named SIP (Session Initiation Protocol). Continue reading “Conversations with Internet: VoIP part 2”

How chat applications work

Apart from browsing through websites and sending & receiving emails, what other activity do you most commonly do on the Internet? Most of you must have unanimously agreed upon instant messaging. The ability to have a text conversation with anyone across the globe, that to for free, is one of the best appeals of instant messaging or chatting. From being dinosaurs that could only speak standard English letters, chat applications have come a long way just like the rest of computing and Internet. Today, chat applications cover free voice calls, free video calls, emoticons, stickers and the ability to converse in text in any computer-supported written language in the world. In fact, chatting applications have evolved to such ubiquity that not just humans, even machines use chat to talk to each other. Continue reading “How chat applications work”