A "phone conversation" refers to a conversation that takes place over the telephone, where two or more people talk to each other using their phones. Full definition
It looks as though there were no responses because our customer care team was in phone conversations with you regarding the cancellation of your account right after your original emails. (caninejournal.com)
Some airlines have said they don't believe passengers want to hear their fellow travelers engage in phone conversations during flights, although airlines in some other countries allow video chat. (pcworld.com)
A solid understanding of what happens during phone conversations is fundamental for reaching marketing or departmental goals. (callrail.com)