In message <l7svf0$10o$
1...@dont-email.me>, Bob Henson <
rh54...@gmail.com> 
writes
>However, it might still apply depending what other devices the OP
>has attached already. One old wired telephone for use in power cuts, two
>DECT bases (if he hung the second one on separately), a modem/fax
>machine and Robert is your Avuncular Relative.
>
Thanks, guys, for all the comments.  Two entirely sets of four now 
plugged in and working.  No, we don't need eight, but at least that 
keeps the handsets charged.
Non transferability is unlikely to be a problem.  Not something we ever 
use.  We do have an old style phone for power cuts, but that is the only 
time it is ever plugged in.  No fax machines, or anything like that.
To be honest, we only want multiple phones because we can't hear them in 
other rooms!  The walls here are thick, solid granite, and modern phones 
are not as loud as the traditional ringing phones most of us grew up 
with.  Could just be that we're a pair of deaf old gits :-)
-- 
Graeme