troubleshooting Question

Troubleshooting T1 (POTS) Cabling Issue

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LateNaiteFlag for United States of America asked on
IP TelephonyTroubleshooting
2 Comments2 Solutions17 ViewsLast Modified:
Hi Everyone,

I am just curious what pin(s) to use to troubleshooting a T1\RJ11 cabling issue.  I know it uses PIN 1, 2, 4, 5 but which one would be the main one to use?

Thank you!
Andrew Porter
Chief Information Security Officer

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