Rules in UK hospitals re mobile phone use have very recently been relaxed in most areas including at the bedside.
Certain areas have special signs where they COULD affect certain equipment.

So the expensively-installed and expensive-to-use bedside telephone systems will be losing money for the companies which installed them.

There are privacy issues too- not just noisy phone conversations on the ward, but camera phones...

BBC News: Hospital mobile bans can be eased

Wishing you well, Micca.