Speakerphone Etiquette
Not long ago while traveling on an Amtrak train, the woman seated directly in front of me was using her phone as a speaker so all passengers could here her dual conversation.  She wasn't in an office with the door closed, and her call was disruptive to everyone around her.
speakerphone etiquette long ago travel amtrak train woman seat directly phone speaker passenger dual conversation   office door close disruptive