Event: Friday October 2nd, 2015 at 12 Noon EST Friday

Earlier this year Grandstream Networks Inc. upped their game in the video conference space, launching the GVC3200, an enterprise video conference system. Friday, October 2nd Phil Bowers, Global Marketing Communications Manager for Grandstream Networks Inc. will join us to profile this new device.


The GVC3200 is a potent and affordable solution built upon Android. The device has a feature set longer than can be listed here. It’s SIP capable, but also supports Hangouts, GotoMeeting, Skype and Skype-for-Business. It even includes a built-in-MCU!


Event: Friday September 25th, 2015 at 12 Noon EDT

Digium gives a preview of this year's Astricon in Orlando, Florida

Astricon 2015 October 13-15, 2015 • Loews Royal Pacific • Orlando, Florida


Event: Friday September 18th, 2015 at 12 Noon EDT

Bill Simon joins us to talk about Simon Telephonics services at simonics.com, the features of which are listed below.

  • Convert your Google Voice number to a standard SIP connection.
  • Place and receive Google Voice calls with your VoIP ATA or IP phone, Asterisk, FreeSWITCH, or any SIP PBX.
  • Receive Caller ID name (CNAM) on incoming Google Voice calls.
  • Route your Google Voice number to any SIP URI.
  • Register multiple extensions, all tied to your Google Voice number. Call and transfer calls between them like a miniature phone system.
  • Connect over UDP or TCP (preferred for mobile connections to preserve battery life). Choose TLS for encrypted signaling between your phone and the gateway.
  • Select the GSM codec for better quality over low-bandwidth 3G data connections, or G.711u/PCM for standard connections.


Event: Friday September 11th, 2015 at 12 Noon EDT

We talk about Software-defined Radio and share experiences.

We’ve been playing with the technology since the VoIPathon last year (many of us way before then).

What is SDR?
“Software-defined radio (SDR) is a radio communication system where components that have been typically implemented in hardware (e.g. mixers, filters, amplifiers, modulators/demodulators, detectors, etc.) are instead implemented by means of software on a personal computer or embedded system.” (wikipedia)

Here’s how the ARRL defines it:
“In its purest form, and SDR receiver might consist simply of an analog-to-digital convert chip connected to an antenna. All the filtering and signal detection can take place in the digital domain, perhaps in an ordinary personal computer. While there are still good reasons to use some analog components in high-performance gear, the SDR approach is becoming more common in Amateur Radio.”



Mark Spencer presents Avilution next-generation avionics software

You know Mark Spencer created Asterisk™ and Digium. If you know Mark, you know about his passion for flying (in planes!). He’s going to tell us how this work came about and much more.


#vuc556 – Zencastr Conference Audio Recording

August 24, 2015

Using WebRTC, Zencastr allows you to record each leg or channel of a conference call to a separate file. This makes it easy to obtain quality results when multiple channels are involved, but there are challenges. We’ll discuss the service, pros and cons and show you how it works.

Read the full article →