Seriously, what is the big deal? If a person buys an airplane ticket, he/she has the right to make as many phone calls as necessary until the door is closed.
I can see the OP asking for help, I believe the only options are: noise cancelling headphones or a delta private jet card.
Originally Posted by
jrl22
FA call button
Advise FA
Repeat as necessary
I believe a passenger can make a phone call until the door is closed, so a FA doesn't have any authority to ask the passenger to "stfu".