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Wonder Why

(5,953 posts)
9. The Ooma Telco can handle a REN of 5. My Princess needs 0.7 as do the
Thu Jan 9, 2025, 10:57 PM
Jan 2025

Caption phones. The bases for the wireless ones are 0 and the other box is .3 so that's a total of 2.4. I'm using half of what the Ooma can handle.

REN is ringer equivalence number. Wikipedia has a good explanation for it but basically it is the load of the original ringers (1.0) on old phones. Modern phones take much less load because they just use electronic circuits to detect the ring signal and power the ringer from a wall outlet instead of using the phone line to directly ring as the old phones which were powered from the central office.

The FCC requires that the Telco provide a minimum of 5.0 so all Telco systems have at least that much.

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