Does anyone know these? I ask the cashiers ALL the time when I go there (My own mediocre attempt at humor has been highly amusing to myself., I don't think they know what I want to do) and they always tell me it's a button on their phone. I looked on a phone and I think there was a page and intercom button on it. Intercom should be overhead paging, but if I tell them to press transfer, then intercom, then hang up, it sounds suspicious.
I want to tell them to press transfer, then the intercom extension, then hang up. Since the employees probably don't even know the extension they'd probably transfer me.