Round sign

I noticed this round sign this morning, next to an old style neon sign. It was raining a bit and I struggled with my umbrella to take this pic ;-) 

Nowadays, as everyone has one (or more) mobile phones, most of the public phones have been removed. I thought it was nice to see the old "phone" sign, as it is a reminder of how we used to be and how politely it told us that a phone was available in the bar...