Adtran Co-Founder, Mark C. Smith, Passes Away

Adtran’s Co-Founder Mark C. Smith passed away on Tuesday March 27th due to complications from pneumonia.
According to ChannelWeb, Mark Spencer, the creator of Asterisk and recently took over the CTO role at Digium, was among the hundreds of mourners who waited as long as 90 minutes to pay their last respects to Mr. Smith.
Smith, a [...]

How to Configure OpenSER: SIP Registar, SIP Proxy and Far-End NAT Traversal for Media

OpenSER is a flexible, mature and stable SIP communications server. However unlike Asterisk, OpenSER requires extensive knowledge of the SIP Protocol and presumes nothing about your configuration or method of deployment.
I am basing this configuration on OpenSER v1.1.1 which is currently considered the most ’stable’ version. Although v1.2 has been released, I am going [...]

Vonage Found Guilty of Infringing VoIP Patents

A federal jury in Alexandria, VA handed down a very disturbing decision against Vonage’s usage of VoIP technologies patented by Verizon.
This decision, if not overturned, will have a serious impact on the continued growth of VoIP Services. I fear that Verizion’s lack of ability to produce a profit with their existing business model [...]