On Sun, 08 Mar 2015 21:41:27 +0000, Toby wrote:
>> The POTS side only needs ringing to drive proper bells (Bell 50c).
>
Well that's the sort of thing and it even uses DECT but I don't think
you can pair the slave with anything other than an RTX master. The
pairing process appears to involve joining master/slave with a cable.
The ATA idea popped into my head 2 ms after pressing send but that
seems a bit overkill and involves wires. I was sort of wanting
something small and battery powered, there is quite a bit of space
inside a Bell 50c...
Butcher an old dect handset, switched 25 Hz oscilator, into 15:1 step
up transformer(*) to drive the bell?
(*) Small mains jobbie with 15 V secondary?
--
Cheers
Dave.