HI
"There were no mobile phones . . . . . "
Just street boxes.
People rang the nearest street box to the person/family they wanted to speak to.
With any luck someone (passing) would answer it AND go to the requisite house door to say "you have a call".
Then,
there were the shared lines, where upstairs would always be on the line.
Then,
when the family got their own line, daughter "Irene" would be in the hall "all evening" talking to her latest beau.
He'd be in the street box, 25 yards away, with loads of pennies frantically pushing button A.
Or, was it Button B?
Ray