Need to know the newest requirements on POTS line vs Radio communication for a fire panel dialer. Whats the required way that my fire panels should be using in today's requirements.
My take, 2013 NFPA 72 and after pots lines are not allowed
Just to clarify: A secondary Plan Old Telephone System (POTS) line is not permitted for multi-path communications unless there is no cellular, IP or radio available in the area. A single POTS line is still required in accordance with 22.214.171.124.4 of the 2019 NFPA 72 unless your local AHJ has a different regulation since POTS in some jurisdictions are fading out of existence.
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