Asterisk is originally designed for the Linux operating system and is the leading open source PBX, telephony engine and application toolkit. It also runs on different operating systems like NetBSD, OpenBS etc. This toolkit comes with perfect flexibility and the latest technology that makes it even more popular. In this article we would like to touch upon the facts concerning the benefits of a VOIP telephony system with the help of the asterisk.

VOIP telephony in Asterisk helps to make regular voice calls over the internet as if it were a regular data.  Asterisk supports the VOIP in 4 protocols which are H.323, Session Initiation Protocol (SIP), Media Gateway Control Protocol (MGCP), and Skinny Client Control Protocol (SCCP). Not only does it allow the user to transmit voice data but you can also to type any data that is compatible with the advanced information integration.

Every business enterprise aims to enhance their business with the latest technology and the least investment possible. These goals can be achieved by using an application like Asterisk which makes use of the latest VOIP telephony features and back to at economic prices.

In a recent press conference Packt introduced the Asterisk book which is written with the intention of assisting people to design and develop VOIP telephony platforms and services. The book is named as the Asterisk Gateway Interface 1.4 and 1.6. The programming is written by Mr. Nir Simionovich who is an open source expert. This program helps users to develop and enable voice applications using the PHP and PHPAGI programs.

This book also contains a new concept which provides a full understanding of the AGI scripting. Another feature of this book is that it consists of various techniques of interactions like recording messages from the users, sending the output to them and also controlling the flow of calls. This book follows the simplest Asterisk application called as the dial plan.

By using this book, it becomes very easy for the users to formulate Atomic AG enabled scripts which enables quick development within the Asterisk execution and run time environment. It also helps in understanding the Asterisk Manager interface and its use in the Asterisk applications. Based on this information, the user can easily develop a web based call- back platform and IVR applications with the help of a PHP and PHPAGI.
VOIP telephony is gaining a lot of popularity in terms of modern voice communications. It vastly helps in the consolidation of the telephone services in an existing IP infrastructure. The above book is an ideal choice for system administrators and VOIP telephony providers

Traveling abroad is always a great experience but when it comes to talking to the people back home, calls could be a bit expensive especially if you are on roaming facility. People who travel often usually have multiple phones or SIM cards from the particular countries they are visiting.

‘Truphone Anywhere’ is a complex VOIP service with which you can make international phone calls for very reasonable prices.

Did you know that you can make cheap internet calls with Truphone even if you are not connected to the Internet?

‘Truphone Anywhere’ is available wherever there is a network signal. The new tariffs are designed to suit the needs of the users who keep traveling frequently. This latest technology is becoming very popular for making calls over the internet at the best possible prices.

How Does Truphone Work?

‘Truphone Anywhere’ will help you save a bundle of cash on international phone calls from your home country. Anytime you want to make an international phone call, you will be asked whether you want to use Truphone facility or not.

You can make international calls in two ways:

Wi- Fi Calls: With this facility, people using Nokia and iPhones can make calls from any Wi-Fi zone worldwide. The Wi-Fi connection is used to route the call over the internet at amazingly low rates. This also helps the users to save loads of money on international phone calls. The Wi-Fi calls to other Truphone users are completely free.

Non Wi- Fi Calls: People using Blackberry, Nokia and I phones can even make calls without the use of a Wi Fi connection.

Truphone Anywhere works in two different modes.

They are

* Call back mode
* Call through mode

The calls made from any Truphone acts like any normal phone call. The user just has to dial the number and wait for the call to connect.

When you dial an international number, the call is automatically redirected from the handset to a Truphone access number in your country. It then connects to the Truphone server and automatically places the call to the international location.

The call back mode has advanced features and it is available for Nokia users only. This facility comes handy in both home country and any other country. All that the user will need to do is, dial the number. The handset automatically sends an SMS to the server requesting to place the call.

This service allows international travelers to make use of one phone and one SIM card as long as they are in that particular country. It means that every phone call you make gets converted to a local call and you will not need to pay regular international cell phone rates.

This is definitely very beneficial for business men who frequently travel and have to make international phone calls to their clients, partners or back home. ‘Truphone Anywhere’ offers a whole range of facilities for its users. You can also make use of your personal Wi- Fi connections to make international phone calls.

UK is celebrating Mother’s Day on 22nd March, 2009, a Sunday. Check some of ads from the VoIP Company (Skype) & other. Its interesting.