Author name: Andrew Walding

Andrew Walding is the founder and president of CellStream, Inc., bringing more than 30 years of experience in telecommunications, broadband networking, Internet technologies, and technical education. His expertise spans network engineering, wireless and wireline communications, packet analysis, network operations, emerging technologies, and the design and delivery of advanced technical training programs. A Cisco-certified professional, IPv6-certified specialist, and CBRS Certified Professional Installer (CPI), he helps organizations and technology professionals understand, deploy, troubleshoot, and optimize modern communications networks.

Speaking at the Wisconsin State Telephone Association

Post Views: 960 Monday, May 25th, 2009 As many of the CellStream faithful know, we are hugely dedicated to the Independent Telephone market, and have been since the founding of the company in 1998. We were recently invited and happily accepted an opportunity to speak at the Wisconsin State Telephone Association conference. A short video […]

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Cloud Computing and Virtualization – A Missing Link

Post Views: 1,556 This article was originally published Monday, March 23, 2009. I have been messing rather seriously with virtualization recently. Specifically Microsoft Virtual PC and Microsoft Virtual Server products, as well as SUN’s Virtual Box. The good news is they all work pretty much as advertised, albeit they have differences. I now have a

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Can I erase my accounts on Facebook, Twitter, etc.?

Post Views: 1,246 Two answers to this one: sort of, and absolutely. Sort of means you can go to these sites and select to deactivate your account.  The problem is that while it is deactivated, all your information, history, friends lists, postings, tweets, etc. are all maintained.  You can reactivate almost any time you want.

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High Tech corporate dependencies – explained

Post Views: 1,320 Since we all work in high tech … Does the statement, “We’ve always done it that way” ring any bells…? The US standard railroad gauge (distance between the rails) is 4 feet, 8.5 inches. That’s an exceedingly odd number.Why was that gauge used?Because that’s the way they built them in England, and

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CSI-HO-020-G – Explore Packet Analysis with Wireshark – WLAN Edition – 2 Day

Post Views: 22,117 CellStream, Inc. – Telecom Consulting and Training! 2-Day Instructor Led Hands On Lab Class Available in Web Based delivery or onsite, instructor led Minimum 10 students – Maximum 16 students What Students are Saying about this class: “Understanding how Wireshark can be customized to make my job easier (this will help WELL

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IPv6 Hands On Training – The Time is Now

Post Views: 31,498 Check out these additional IPv6 Resources: Our IPv6 overview course at Udemy Our IPv6 Custom Profiles for Wireshark Our IPv6 classes at the Online School Thanks to the publication of a study by the NRO (Number Resource Organization) that is the official representative of the five RIRs (Regional Internet Registries) that oversee

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CSI-HO-006 – Hands-On Advanced IP Networks/Protocols

Post Views: 21,911    CellStream, Inc. – Telecom Consulting and Training!             2.5-Day Instructor Led Hands On Lab Class Available in either Web Based delivery or On-Site Delivery Minimum 10 students – Maximum 16 students Course Description: Advanced understanding of the TCP/IP protocol suite, and Internet Protocol network operation/behavior skills are vital

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Turning Old Computers into Tools for Subscribers

Post Views: 1,035 This article is directed at my many Independent Telephone/Rural Local Exchange company friends.  It is the details behind a story I often talk about at conferences and training sessions. One of the main challenges for the RLECs is to up the “take-rate” of broadband in their served area.  There are a number

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Don’t Drink From Hotel Glasses!

Post Views: 1,474 If you think they are safe and clean just for you, you need to read this news report: https://abcnews.go.com/GMA/BusinessTravel/story?id=4277067 Comments are welcomed below from registered users.  You can also leave comments at our Discord server.  If you would like to see more content and articles like this, please support us by clicking

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Our First Experiences with Windows SharePoint 2007

Post Views: 1,638 As those of you close to us know, we have been big fans of Microsoft’s SharePoint concept since initial release several years ago.  We have, in fact, recommended it to every small/medium business owner that will listen to us!  The entire CellStream back office became converted to this online database system.  Was

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CSI-HO-016-C – Hands-On Ethernet and IPv6 – 2 Day

Post Views: 22,578    CellStream, Inc. – Telecom Consulting and Training!             2-Day Instructor Led Hands On Lab Class Available in either Web Based delivery or On-Site Delivery Minimum 10 students – Maximum 16 students   Course Description: Knowing the fundamentals of Ethernet and the Internet Protocol Version 6 (IPv6) is

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CSI-HO-008 – Layer 3 IPv4 Routing 101

Post Views: 23,376    CellStream, Inc. – Telecom Consulting and Training!             1-Day Instructor Led Hands On Lab Class Available in either Web Based delivery or On-Site Delivery Minimum 10 students – Maximum 20 students Course Description: Knowing the fundamentals of the Internet Protocol (IPv4) Routing and the function of the

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Searching for what to write on someone’s review?

Post Views: 995 Look no more..… 1. Since my last report, this employee has reached rock bottom and shows signs of starting to dig.2. His/Her students would follow him/her anywhere, but only out of morbid curiosity.3. I would not allow this instructor to breed.4. This associate is really not so much of a has-been, but

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