Over the course of the past few weeks, multiple bomb threats had been raised against various Jewish Community Centers in the…

Honestly, fraudsters world wide are becoming more and more resourceful. From SIP based port knocking, automatic bot nets and targeted VoIP…

So, the Digium IP phones had been around with us for over a year now, specifically announced at ITExpo 2013. For some odd reason, which is way beyond my personal understanding, these phones aren’t yet popular in Israel and are still being favored for the various Chinese brands. Regardless of that, we’ve received the entire device range for testing and review. We will summarize our findings in two separate blog posts, one related to Integration and one related to Development.

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.

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…

It is that time of year again when we start looking forward to Actually, we are running the Asterisk Security Master…

It’s that time of year again, to update on the latest trends in the Asterisk community and the Asterisk market. In…

[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,…