In article ,
Jim S wrote:

I have a set of 4 cordless phones. They have on occasion cut out in the
middle of a conversation. If the call is incoming I can hang up and pick up
another handset and continue, but it can happen again and the same thing
works with another handset. It first happened if I was using the speaker,
but recently it was during a normal call. The batteries are fine and the
distances between the phones and the master-phone is never more than 10m

Are you sure the batteries are fine? Our phones do this occasionally,
nowadays. The batteries *seem* fine, in that they show four bars on the
charge indicator when you pick them up ... but they quickly degrade to 2
then 1. It was only last week that I realised that maybe I ought to
buy new ones (they're AAA rechargeables): they ust be at least 4 years
old by now.

John