Well here's my take on this.
The only phone that should be aloud to ring in any establishment open to the public is the one behind the bar, or the reception desk.
Some establishments are now displaying "No Mobile" signs and fining people whose mobiles go off with an audible ring tone, with the proceeds going to charity.
I am totally against the idea that the antisocial practice of making/receiving calls inside pubs, restaurants, theatres and even shops can become acceptable over time on the basis that
"times change".
My mobile is always on silent and it does not contain a vibrator. I keep voicemail on so that callers can leave a message/number. Otherwise they can text me. If I want to make a call, I go outside and make my call at a discreet distance away from the building.
Job Done!