In The Idea Factory (about Bell Labs) they describe another common method being to shout "Ahoy!" into the phone and hope that this gets the attention of someone near the receiving telephone. I just love the mental picture I get from that.
On the other hand, this forced people to make written appointments for calls. Sometimes I wish that happened more often.
Me and everyone I know in a professional setting makes written appointments for calls. We write it down in Google Calendar or similar, with a link to where the call is taking place.
On the other hand, this forced people to make written appointments for calls. Sometimes I wish that happened more often.