Comrex will be closed on Thursday, November 26 and Friday, November 27 for the Thanksgiving holiday. Tech support will not be available during this time. Please contact tech support in advance if you require assistance by calling 1-978-784-1776 or emailing techies@comrex.com. Comrex will reopen on Monday, November 30 at 9AM ET. Click to read the following changes in operation due to COVID-19.

Hotline

Resources

Technotes

POTS Basics

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Fixing Bad POTS Lines

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POTS Over ISDN

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POTS vs ISDN

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Using a POTS Codec on a Dry Pair

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Modem Line Checklist

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Notes on Business Telephone Systems

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POTS Modems vs IP Telephony

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Parts

Hotline Power Supply with Barrel Connector

$75

If you are unsure which connector type you have, please contact Comrex.

IEC power cord not included.