Tag Archive for: Firewall Configuration

ngrok tunneling architecture illustration

WTF is Ngrok?

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Ngrok better than sliced bread! As a software engineer developing telecom based web applications, testing and validating software can be a major time sync.  How do you get your lab system on the Internet, accessible with a public IP, so you…
Firewall illustration

Cloud based Next Gen Firewalls?

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Firewall or Security Appliance? Along with the general tend for business to move to a subscription based, recurring revenue model, the ubiquitous firewall has also moved to the cloud!   In the case of the firewall, however, there is measurable…
Ingate SIParator feature chart

Use an Ingate SIParator and you are “virtually there”!

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We have written on the subject of SBC quite extensively in the past and have also covered the easy installation of the Ingate product (see DrVoIP here).   Readers must find this interesting because the hit counter for our Ingate videos continues…
Social media acceptable use illustration

Network Security begins with an "Acceptable Use" Policy!

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Most folks seem to understand what a firewall is and why it is so very important. They intuitively understand they need something between the “trusted” internal computer network, and the wild west we call the Internet! The installation of…
SIP thumbs up illustration

V14 Trouble Shooting ShoreTel SIP

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ShoreTel SIP is just not that hard to configure! When things go right, and it all works, it is relatively painless and very easy.   When things don't work however, you will need to sort out the problem and figure out how to make it work.  …
Root privileges illustration

Is there a RAT Virus in your phone system?

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If you have a device on your network that you do not have root privileges for, then your entire enterprise is at risk for a Cybercrime! Do you want to know what a Trojan horse might look like? It might very well look like a Linux appliance provided…
Firewall illustration

Don't look now but you have been hacked!

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Hackers at the Front Door? Most every home and business office now has a firewall that separates your internal computer network from the wild west of the world wide internet. The good news is that firewalls have become increasingly more sophisticated…
ShoreTel Mobility Router System Admin Video Cheat Sheet

ShoreTel SIP, Mobility Router & the Firewall (Part 1)

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This is not a SIP tutorial,  only an overview on the issues that impact remote SIP phones on any iPBX.  When you set up a SIP call between two end points, there are upwards of four "holes" that might need to be punched in your firewall for…
Amazon EC2 illustration

An iPBX in an Amazon Cloud? A disaster recovery story!

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Did you every think that your company would be physically unavailable, the building not accessible and the phone system unmanned? The issue of business continuity and disaster recovery is on your 'to do' list and hopefully you can get to it…
Ingate SIParator configuration video preview

ShoreTel SIP Trunks a Snap with Ingate SIParator!

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I don’t think your average business professional wakes up in the morning and says “Gee, I need some SIP”!   They do however ask questions like how do we get an Area Code from New York to appear on our System in San Diego?  Do I really…
Ingate SIParator configuration video preview

How to Telnet into a ShoreTel phone

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A typical trouble ticket might sound like "when another extension calls me, I can hear them, but they can not hear me"!  Actually, one of my personal faviroites.  Over the years I have come to learn that this is usually the result of one of…

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