I was in Spain last week, on the Vodafone ES network, and dialled a wrongly-constructed number. The call didn’t connect (just went dead, no ringing) and I got this message. That number at the bottom is the number I was calling, properly formatted. If the system knows how to format the number – why not just dial it and not pester me?
The notion of “service design” can’t come on these companies too soon if you ask me.