I feel like my head's going to explode. I share an office with four people. We all have our own phone lines (0800 666 VOLE in my case). It's not a large office. I can traverse it in 5 steps. So if the person you wish to speak to isn't free, or there, you'll know within 10-15 seconds.
So WHY in the name of all that's holy, would you keep phoning back for a full 10 minutes? Over and over and over again, as though you think that persistence will bring some kind of reward. Only fear that I might utter bloodcurdling threats prevented me from breaking etiquette and answering my colleague's phone myself.
In any case, the little genius popped in to follow up her phone call. 'Is X in?', she asks me. Yes, he is. He's wearing an invisibility cloak, which is why you can't see him.
Bah. I need some phone music.