Visit the ISE Buyer's Guide for products and solutions related to Core/Legacy.   The educational content of this category relates to the evolution of the core/copper legacy infrastructure that Telecom/Communications Service Providers' (CSPs) must use to support the mobile and fixed networks.  Best practices and guidance are targeted to telecom providers, contractors and others aligned with the ICT industry.


Don With Truck
Copper Expert

400 Columns + One Farewell

May 1, 2022
Don McCarty, ISE magazine's Copper Expert, reflects on his career as a trainer and columnist.
ISE Columnist Don McCarty, OSP Expert

How come?

April 1, 2022
Field technicians call or send emails or texts to me asking questions about a problem they are encountering when provisioning and maintaining the copper infrastructure. These ...
ISE Columnist Don McCarty, OSP Expert

Save the cable, keep your technicians, and develop loyal customers.

March 1, 2022
Each cable pair that is placed from a central office or a remote to a customer costs a few thousand to the telco for engineering, placement, heating up, and installation. […]
ISE Columnist Don McCarty, OSP Expert

Provisioning And Maintaining POTS Circuits

Feb. 1, 2022
I feel privileged to have participated in the growth of the telecommunications industry. I’ve trained copper cable technicians for 50 years and, […]


PLP episode 10 NEW
Video Vault

Episode 10: Fiber Optic Closure Specs Explained – GR-771-CORE: Freeze/Thaw and Water Resistance

April 1, 2022
Preformed Line Products (PLP) video series: Fiber Tips and Tricks Each episode will include one concept, tip, or piece of information intended to help fiber optic splicer and ...
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ISE Columnist Don McCarty, OSP Expert

Cable Locating: Beyond The Basics

Dec. 1, 2021
In earlier columns I have discussed how to get started with your cable locator with tips about the types of hookups, tone transmission, etc. This month I discuss some of […]
ISE Podcast, Fujitsu, Modernizing Legacy Networks

Preparing for the Future: A Three-Phased Approach to Modernizing Legacy Networks

Nov. 4, 2021
As service providers transform their businesses to become agile and responsive and support configurable digital services, the question of network modernization is more and more...
ISE Columnist Don McCarty, OSP Expert

Oops! Sometimes we are wrong.

Oct. 1, 2021
I post my cell number and email address at the end of every column, and over the years, I, or others working for me, have trained at least a thousand […]
ISE Columnist Don McCarty, OSP Expert

Bonding and Grounding: A Well-Grounded Shield

Sept. 1, 2021
With guest writer Bill Cole — A field technician with a high-power influence problem recently asked me how to ensure that a cable was properly bonded and grounded. I reached [...