VoIP Hardware for experienced Users

Once you are experienced in using softphone, you may start wondering whether there is an easier way to communicate through VoIP, as using softphone via a computer is not practical—you need to turn on your computer each time you want to communicate through VoIP or keep your computer running for a long duration just to receive incoming call. This may not be prudent at all, since the purpose of using VoIP is to minimize your cost. Besides wasting electrical energy, the computer in which the softphone is running could crash.

What Is Internet Telephony ?

In a simple definition, Voice over Internet Protocol (VoIP) or internet telephony is a telephone network over the internet (TCP/IP) network. Thus, you could use VoIP anywhere as long as you are connected to the internet.

There are two main internet telephony technology, i.e., H.323 and Session Initiation Protocol (SIP) that are frequently used. The former is an older standard developed by the International Telecommunication Union

How VoIP Works for Dummies ??

The heart of VoIP network is the softswitch. It stores all information on the subscribers. In a simple view, a VoIP softswitch basically has a table mapping the phone number of the subscriber and the computer or IP address of the subscriber.

Everytime, a subscriber wants to make a call to another subscriber. The client equipment will ask the softswitch the destination address of the other subscriber. The destination address can be an IP address. Thus, the