In our previous post (http://bit.ly/1lRRcZp) we’ve explored the world of long distance calling cards, and a small case of provider that…

Since the inception of GreenfieldTech, back in 2007, we’ve assisted over 40 different VoIP companies to bootstrap their activities and launch their products. During that period, some of these companies had become a great success and some had disappeared from the face of the planet. This series of posts will bring the story of some of them – and we’ll try to analyze what made each company into a success or a failure.

Official Videos from Astricon 2013 Security Master Class have been posted Greenfield Technology not only organized these 2 days of security…

During this years Astricon, Eric Klein and myself were entrusted with the task of helping to organize and execute the Asterisk…

We are happy to announce the foundation of the VoIP-On-Tap meetup group. You can register at http://www.meetup.com/voipontap/. The VoIP-On-Tap is an Israeli…

We will hold a meetup on every first Monday of the month. The next meeting will be held on Monday, March 4th between…

[info_box]This is a cross post – the original post was posted by me on the Humbug Project blog – here[/info_box] First…

As you know, fraud analysis and Telephony Security forensics are a big thing here at GreenfieldTech. As our CEO, Mr. Simionovich,…

Has it been a year already? it seems like Asticon 2010 (Washington DC) was just a few weeks ago and here…