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…

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.

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…

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

So, you are interested to know – how many calls can a server running on Amazon EC2 can actually handle? Well,…

GreenfieldTech Presentations from AstriCON now available on our downloads page

At Astricon in Atlanta I presented the initial results of our VOIP Security Audits, and we will be posting links to…