Why does my phone sometimes not ring when people call? A communications expert explains
- Written by Jairo Gutierrez, Professor, Department of Computer and Information Sciences, Auckland University of Technology

There’s a certain feeling I get in the pit of my stomach when I’m waiting for an important call to come through. You know the type – maybe a call from your boss, a potential new employer or news of a loved one who’s due to give birth.
In these situations, I usually stare at my phone, willing it to ring. I make...