Re: Boost the ringer current instead of ...
In the days before I had my extensions hung off a PABX, I used a plug-in unit (with a REN of 1) which was presumably the converter referred to above. Its output supported of REN of up to 8, allowing a total of REN of 11 (inluding 3 connected direct to the incoming line).
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Mending is better than Ending (cf Brave New World by Aldous Huxley)
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