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

By Nir Simionovich (Originally published in Hebrew at Telecom News on 15 June 2014) Call analytics, sounds like something relatively simple and so…

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.

Part of our continuing series of hardware reviews This review is of Allo.Com’s MegaPBX (http://www.allo.com/megapbx-line.html). As Wikipedia explains Historically, the expense…

In our previous posts we’ve examined a specific segment of the Asterisk Business eco-system – the long distance calling services (calling cards, callback, etc). While we’ve examined 2 specific models of operation, indicating the pros and cons of this business case – we shall now talk not about a specific case, but more about the requirements for building a specific type of voip business.

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.

** This post is cross-posted on www.simionovich.com ** Honestly, this is something I should have already done a long time ago….

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…