Men can't do much to change; we have to wear suits, although I never wear a tie, apart from in Asia sometimes. So I decided to grow my hair.

You can always think that we're old and not innovative, but there is no company that can limp on for 139 years without being creative and having the genes to change.

I believe mobile technology has a much broader role to play. It could solve some of the biggest problems on earth.

You're going to see this 'Internet of things' start demanding network performance and making the networks much more aware of what is on top of them.

When I came into the CEO office, I basically changed the entire management team. We knew that we had to change the company, so we needed a new set of leaders.

Nowadays everyone's got the nose rings and the colored hair, so for me to wear the suit and tie is a different way to go.