Technical Advice

It doesn’t matter whether you’re new to VoIP or a grizzled IP communications veteran. The VoIP Insider has the technical information, resources and tutorials you need to be successful.

Featured Technical Resources

Learn a wide variety of helpful information through the VoIP Insider feature technical resources. From guides on specific aspects on VoIP technology, to step-by-step tutorials, the VoIP Insider has the technical knowledge you’re looking for.

Advanced Technical Information

Not for the beginner or faint at heart, the engineers at Insider Labs continuously cook up the solutions to your toughest technical problems.

Last Technical Advice News

VoIP Faxing with the Sangoma Fax Sync Cable

Looking for a reliable VoIP Fax Solution?
Wait no longer. The Sangoma Fax Sync Cable can help.
All of you VoIP engineers, installers and end users have heard it, “Keep your faxing off of your VoIP system”
And for good reasons. Fax over IP historically works about 50% of the time, leaving most users scratching their heads as [...]

Read more

VoIPSupply Labs: How to Configure the Linksys / Cisco WIP310 for Trixbox PRO Enterprise

One of our readers recently shared some issues they were having getting the Linksys / Cisco WIP310 WiFi VoIP Phone up and running on Trixbox Pro. Trixbox PRO is the “hybrid hosted” version of Trixbox, quite a bit different from normal Trixbox CE, and SIP setup is much different than a normal Trixbox CE [...]

Read more

Aastra adds electronic hook switch (EHS) support

As of the latest software release by Aastra (2.5.1.2000 Patch July 09), the following Aastra IP Phones now support Electronic Hookswitch (EHS) or otherwise known as DHSG.

Aastra 6753i
Aastra 6755i
Aastra 6757i
Aastra 6757i CT

If you are not familiar with EHS, it is a feature that allows you to answer your phone using your wireless VoIP headset without [...]

Read more

Using OpenVPN with Snom IP Phones

Did you know that you can configure two Snom IP phones for VPN without additional equipment? Snom provides a special firmware load for the Snom 370, Snom 820 and Snom 870 IP phone models that all you to set up a secure point-to-point VoIP infrastructure using OpenVPN.

Read more

Help with Mass Provisioning Snom Phones

If you are a fan of Snom phones, you might be interested in a handy CGI script for mass provisioning Snom phones that I came across recently.
Click to Download CGI Script for Mass Provisioning Snom IP Phones
This snippet of code will save you a ton of time if you are deploying a number of Snom [...]

Read more

VoIPSupply Labs: 4 Uses for the New Cisco SPA8800 Gateway

There are bunch of interesting applications for the new Cisco SPA8800 4FXS + 4FXO SIP gateway. Having both RJ11 FXS and FXO ports makes the Cisco SPA8800 a pretty versatile piece of equipment at a very attractive price point.

Let’s take a look at a few deployment scenarios for the Cisco SPA8800.

Read more