Comrex will be closed on Monday, July 4th, 2022 in observance of Independence Day. Tech support will not be available, and we encourage customers to reach out ASAP if assistance is required. We will reopen on Tuesday, July 5th, 2022 at 9AM Eastern Time (US & Canada) for normal business hours.

Hotline

Resources

Technotes

POTS Basics

Download File

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.