Mobile2Null

JAJAH is a VoIP (Voice of IP) service which allows you to make free or cheaper calls all over the world straight from your normal phone.

Usually JAJAH is used via a web-browser and the number is called by typing the number into a web interface and initiate the call. You’re then called back by JAJAH and forwarded to the number you dialed.

The really amazing thing and the reason why I write about here is, that JAJAH also provides a plugin for mobile phones and enables you to use the service without the use of a PC.
The plugin runs in the background and when you call a number outside your homezone the plugin forwards the call to JAJAH and you will pay the JAJAH fees, not the more expensive ones from your provider.

The best of this is, it works really great and helps you to save a lot of money! But take care if you’re outside your homezone. The plugin opens a webconnection and this means that you have to pay for roaming. This could end in a even higher fee.

Mobile Web 2.0 - The innovator’s guide to developing and marketing next generation wireless/mobile applications by Ajit Jaokar and Tony Fish published by FUTURETEXT is a very interesting guide if you want to know more about Mobile 2.0 and what it means.
The book is also a fabulous guide if you want to know more about how mobile industry works and how important services are in this environment.

I use this book as one of my main sources for my diploma thesis and every time I read in this book I have a notebook with me and note down notes for possible services which could be developed. Great inspiration!

More information about the book can be found at the books site.
[techtags: BOOKS, MOBILE 2.0, MOBILE WEB]

From my point of view there is a significant change in the use of mobile phones coming along with the uprising of Web 2.0.
People also want to use their services mobile and one of the seven principles for Web 2.0, defined by Tim O’Reilly, CEO of O’Reilly Media, is “Software above a Single device”.

This was the motivation to write a diploma thesis about this topic and to write this blog.