🚀 go-pugleaf

In article <877780096snz@longley.demon.co.uk>, David Longley
<David@longley.demon.co.uk> writes
>Here's a puzzle for UK BT engineers and other UK telecoms folk.
>
>We  have two phone lines, one for voice and one for the  PC.  The 
>voice  line is on the new exchange as it supports 1471 and  other 
>services. The other number is not, but will be changed over  next 
>month.
>
>My partner recently bought a second phone "HORIZON" IE-AH  REN=1, 
>and  plugged  it  in  upstairs, leaving  the  currnet  phone  and 
>answermachine plugged in downstairs. The new phone's ringer  just 
>rings.  Even  if  the  downstairs  phone  and  answermachine   is 
>unplugged the same happens. Same happens with an old BT  Viscount 
>phone plugged in. (The SONY SPP-50 seems fine though).
>
>This does not happen on the older line. Any suggestions?

Does it do it in all sockets ? 
Suspect line polarity at the offending jack/s.
-- 
Ian Cummings