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Start here for tips that can save you hours of chasing your tail when troubleshooting phone systems and network equipment
These are the AC, DC, Current and Circuit Loss readings you need to take to figure out
why a phone line is doing strange stuff. It's what I fill out myself on every service call
where there's a strange problem!
Fill out this PDF chart to fix strange problems!
A list of all of the quirks you'll run into trying to make VoIP work... Read it now, or live it later!
A quick checklist for both homes and businesses when switching to VoIP phone lines
All the things you can try to eliminate echo on a VoIP system, improve DTMF digit recognition, and make a Modem or Fax communicate.
Fix Caller ID problems. Includes things to check when it works on a cheap Caller ID box, but won't work on the expensive phone system! DON'T replace the KSU first!
Eliminate Radio Interference on Phones, Headsets, Handsets and Ethernet Equipment.
Radio Frequency Troubleshooting Flow Chart (downloadable PDF)
How To Troubleshoot Cordless Phone and other Wireless Problems Including DECT phones that can reduce interference
Troubleshooting Calling Party Control (CPC) Problems
A bad ground can cause all kinds of strange problems as well as allowing surges to blow your equipment up
There are some easy ways to determine whether AC Power or the AC Ground is causing your problems
Things to check, step by step, to find the cause of hum on analog phone lines or station ports
Fix "Unfixable" Problems caused by irregular loop current and circuit loss
Fix Problems on Phone Lines Coming from "Fake Phone Line" Boxes
Like Cable Company, Fiber Optic, Uverse, Fios, VoIP and other fake phone line providers
Fix Hum and Strange Unfixable Problems
How to measure AC Ring Voltage with a digital volt meter
How to Fix Intermittent Fire Alarm Phone Line Trouble Alarms caused by Low Voltage
How to Find Crosstalk on Analog Phone Lines and Station Ports
Fix the problem where the two outside parties can't hear each other on a conference call, or when transferred out of the system on a second line using the system's External Call Transfer feature
Updated June 2, 2015 with the Magic Jack GO / EXPRESS
Making the Magic Jack work with more than one phone, or old phones with real bells
Explains How the Different Message Waiting Types Work
The secret meaning of Hearing Aid Compatibility
How sandman.com got started
Repair Bad Dials, Keystrips and Remote Control Buttons
How Using a Headset can Save Money
Make Any Serial Connection Work in 10 Minutes!
Tips for repairing merlin and spirit membranes
Cleaning Kit Instructions to make Used Phones & Computers Look Like New!
Using a burnishing tool to fix sticking dials and clean electrical contacts
If you still use a modem (really!?) learn how to protect it with our modem protector.
"I think my phone line is tapped... What do I do?"
'Why my phones (and other things) don't work right'
Fix Phone & Network problems without troubleshooting with this Patented
Zero Ohm Technology™