On 27/01/2020 10:42, The Other Mike wrote:
On Mon, 27 Jan 2020 09:30:07 +0000, Martin Brown
wrote:

On 27/01/2020 02:59, wrote:

if there's another battery in bellbox, disconnect or wait it out until flat.
it will be silent.

That is bad advice. It will almost certainly go off in panic mode and
the external bell will ring continuously until its battery dies.

Will it? Does that response not violate the 'legal' time limit on the period a
bell or siren may sound for?

Yes. But it only happens in the event that the bell box finds itself cut
off from the control unit. Older ones are not very smart once isolated.

--
Regards,
Martin Brown