adventures of a VoIP / SIP / IMS trainer & contractor|info@rzfeeser.com

Enable Telnet on Windows 7

Ahh, a brand new install of Windows 7. Let me just take a moment to duck out to the command prompt. Just have to telnet into the old router and make some changes to the DHCP pool… let’s see here. Good old trusty telnet, always works, never lets me down. Haven’t used it in so long… what is the command to start telnet again? Ahh yes, that’s right, ‘telnet’.

 
C:UsersZiffIsZeus>telnet 192.168.200.1
‘telnet’ is not recognized as an internal or external command,
operable program or batch file.
Telnet is not recognized!? Inconceivable! If virtually the same calculator that was packaged in windows 3.1 is […]

Star Trek : The Star Codes Generation

CLASS codes, Vertical Service Codes (VSCs), or the ‘Star Codes’, were all names for a list of codes developed in the late 60’s and early 70’s by AT&T Bell Labs. These codes began with an ‘ * ‘, and allowed PSTN customers to mail their phone companies large amounts of money. In exchange, users were able to enable fancy PBX features on a per-call basis. All of these codes preempted the dialing process, and were usually 2 or 3 digits in length (although each telephone provider may have their ‘own’ unique list).

By the way, the name VSCs harkens back […]

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    How to install drivers for fingerprint reader on Dell Latitude 6520

How to install drivers for fingerprint reader on Dell Latitude 6520

One of the Dell Latitude 6520s I work on includes a ‘bio-metric’ finger-print reader device. Let’s face it. Bio-metrics are just plain FUN! Who doesn’t secretly LOVE feeling like 00 agent as they log into their computer? I applaud the fingerprint and retinal scanning devices; they save me precious calories that I’d otherwise expel exercising my many fingers as I laboriously key in login-IDs and/or passwords.

In truth, they’re kind of like Apple’s Siri. (not-really-there-yet). Still they do appeal to the ‘kid factor’ in me, and I am impressed at how well the device actually reads my fingerprint.

That is, until I stuck a […]

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    AVAYA SIte Administration – Unlocking a ‘locked’ command

AVAYA SIte Administration – Unlocking a ‘locked’ command

Occasionally, when working with AVAYA Site Administration, you may lose IP connectivity to the system, maybe there is a power outage, or the office kitty chews through a Cat5 cable. Who can say. Point is, when you lose connectivity while making changes to any Avaya data set, you may find yourself ‘locked out’ of that same data set upon logging back into ASA. Unlocking these data sets is fairly straight forward, but it can be frustrating if you’ve never encountered this problem.

From emulation, type “status logins”.
Your current login will have an asterisk (*) beside of it.
Note any other active […]

GUI RHEL6 install VMware Workstation || Player

You’ll sit at this terribly informative screen until you hit the ‘Next’ button, which is not displayed.
I was installing a copy of RHEL6 on VMware Workstation yesterday, and found a little snafu that made proceeding a bit of a chore (and I suspect VMware Player has the same issue).

The problem is that before VMware Tools are installed (i.e. during the OS installation), the screen resolution displayed within the VMware window (even within full screen mode) can prevent the GUI from displaying the “Next”, “Forward”, and “Back” option buttons. If this was your first RHEL6 installation, you might think the […]

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    VMware ESXi 4.0.0 – How to reset 60 day free trial license

VMware ESXi 4.0.0 – How to reset 60 day free trial license

Enjoying ESXi 4.0.0, but found your license key has expired? In two minutes, you can extend your license for another 60 days! Do remember, that why this is helpful for trial purposes, you are still lacking access to critical updates (such as patches that allow vSphere Client to operate in the presence of the latest version of Microsoft .NET). So enjoy, but don’t expect this little hack to get you out of eventually buying a license!

Sit down at the server on which ESXi is running. No need to log-in. Simply press Alt+F1, and you will enter a screen that […]

A quick guide to installing Switchvox on a virtual machine

Before you begin, you will need a machine with at least a dual core processor, 4 gigs of RAM and 10ish gigs of free HD space. As far as the installed OS goes, I’m going to assume some flavor of Windows.

We’re going to be using two applications- Free Home Switchvox v1.0 and some flavor of a virtual machine. We need the VM because Switchvox is administered via a web GUI and wants a dedicated machine. To this end, I’m going to recommend Sun Virtual Box because of how small it is (70Mbish), and because of it’s opensource GNU goodness factor; however, […]

The definitive 2011 IT nerd Christmas List

 

If you stare a screen for 8 – 12 hours a day (like nerd truly to your left), then you may be obtuse to the fact that Christmas lights have sprung up like tents around Wall Street. Fellow nerds, we are officially awash in the 2011 Christmas season. So, before Grandma buys you another J.C. Penny turtleneck, shoot her a link to a Woot! t-shirts.

 

 
Russell’s IT Ultra Nerd
2011 Christmas List

VMWare Workstation 8.0 – Virtualize nearly any platform on nearly any computer worth it’s weight in salt; run Windows XP, Ubuntu and RedHat Enterprise Linux… at the same time in […]

CiscoLIVE! 2012 in San Diego – June 10th to 14th

I know that I enjoy stumbling across websites where someone has taken the time to group together all of the various live events that are so easy to overlook. Most commonly, these websites are for the arts (performing / musical / theatrical / etc.)– and for that reason, I made a post a few weeks ago on SIPNOC 2012.

I think it might be advantageous to use my blog to help bring together some tech-driven events under a single umbrella. So, without further adieu, CiscoLIVE! 2012 in San Diego, June 10th through the 14th.

CiscoLIVE! 2012 stands out as one of […]

Thoughts on teaching MEGACO / H.248

Live Budokan, it’s MEGACOOOOOO!

I just wrapped up teaching a class on MEGACO / H.248, which sounds like the greatest name for a Scandinavian doom-metal band. Teaching the class required a short 3 hour drive into Piscataway, NJ; perhaps my favorite of all the Jersey business-parks. For no other reason, than traffic never seems to be at a standstill, and there is a business class hotel on nearly every block.

The class went more smoothly than I had anticipated, as the majority of the students already had an understanding of SIP.

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