Author Archives: Marc Spehalski

Marc started with VoIP Supply in August of 2015 as the senior VoIP engineer but now operates as outside consultant. He has a diverse background in communication systems acquired in both the military and civilian world but largely focuses on open source VoIP.

The VoIP Addict’s Guide – Polycom (Poly) and TFTP

March 27, 2018

Simply put: Trivial File Transfer Protocol (TFTP) is a no-frills method of moving files from one place to another. There’s no authentication, and there’s no ... READ MORE

The VoIP Addict’s Guide – Issabel IP PBX Review: Everything to Everyone

December 8, 2017

If there was a quirkiest IP phone system award, it would have gone to Elastix. Elastix IP PBX was well known throughout the open source VoIP ... READ MORE

The VoIP Addict’s Guide – Cost Effective Switching with Netgear

October 11, 2017

If you tinkered with computers as a kid, worked in IT for more than thirty seconds, or stood relatively close to an IT person, you’ve ... READ MORE

The VoIP Addict’s Guide – Sangoma’s FoIP: A Solution to your Faxing Woes

September 29, 2017

Faxing has been the nemesis of VoIP systems for as long as VoIP has been a thing. If you had a good VoIP vendor in ... READ MORE

The VoIP Addict’s Guide – Hotlining FXS with the ADTRAN Total Access 908e

August 7, 2017

https://www.youtube.com/watch?v=eF3XhyDVAyg&t A while back we published this video above on setting up the Adtran Total Access 908e as an FXS gateway. To recap a little, an ... READ MORE

The VoIP Addict’s Guide – SD-WAN, and You.

July 17, 2017

I'll admit it. The term "Software Defined" or "SD" is as big a buzz phrase as "The Cloud." I'm not a huge fan of buzz ... READ MORE

VoIP Addict’s Guide: Your VoIP Questions Answered!

June 29, 2017

As consumers, users, hobbyists, and VoIP professionals, you have a lot of questions, and we'd love to answer them all. But, we can't answer them ... READ MORE

The VoIP Addict’s Guide: Using the Elastix to FreePBX Conversion Tool

May 23, 2017

When we first learn that Elastix had suffered an untimely demise, we were a little surprised. The good folks at Palo Santo had built a ... READ MORE

The VoIP Addict’s Guide – Redundancy in the Cloud: OpenSwan VPN

April 10, 2017

A few weeks ago, I wrote about redundancy in the cloud, mainly using AWS (Amazon Web Services) as an example. Today, we'll talk about how to ... READ MORE

The VoIP Addict’s Guide – VoIP Redundancy in the Cloud

March 28, 2017

Make no mistake, almost everything is becoming a cloud based service. Still running Exchange? You're living in the past, my friend. Phone systems are, of ... READ MORE