How do you know the President is calling? If I saw a caller ID saying anything like that I’m going to assume spam. Unknown DC number, also spam.
Does an aide come to my door and hand me a phone, or warn me that the next call is official?
Otherwise of course I missed the call, guess the President gets to leave a voicemail! And we can play telephone tag with his staff until there’s another moment in his day…?
I'm not entirely sure myself. Some callers are recognized by a carrier and get custom names (at least my does it), so there's probably a way to communicate the president is calling. It won't play the national anthem instead of a ringtone, but that, at least, would make it stand out from random spam callers.