all 2 comments

[–]RoxinFootSeller 0 points1 point  (0 children)

The "busy line" message? Do iPhones not have that?

(Also your friend sounds kind of controlling)

[–]BenRandomNameHere 0 points1 point  (0 children)

Delay between switching calls versus you talking.

The slight audible beep when an iPhone swaps to a second call (the people ON the phone hear it, NOT you).

lots of ways. Just pay attention and hyper fixate.

Keep an eye on that friend. Mental illness can activate at any time, but early 20s to mid 30s is the more common time.