Board Thread:General Discussion/@comment-26006155-20181229180615/@comment-26006155-20190127005348

Going back to the phone calls, I picked up a few things.

When Papyrus gives you his phone number at the end of the date.. FRISK DOESN'T GIVE PAPYRUS HIS OWN PHONE NUMBER IN RETURN.

After the bridge flower puzzle Papyrus calls Frisk, and makes a point about 'How did I get this number?'. Papyrus says he called every number sequentially(such a big word) until he found Frisk's! Then he asks what Frisk is wearing.

This also means that Caller ID doesn't work, because even if the player called Papyrus before this time, this conversation still happens. And again, Frisk is carrying one of Toriel's old phones, so caller ID would have said it was her. Or whoever gave that particular phone to her....(Sans?)

(It does seem like whenever Frisk actually says something on his own, The Player can't hear it. Frisk tells Asriel his name is "Frisk", and Asriel says "Frisk? That's a nice name", but we never hear Frisk say that. So whenever Frisk calls Papyrus and Toriel he probably says hello so the know who he is, but we don't hear that.)

Even though I'm theorizing that Papyrus is a lot smarter than most people think, calling him a Kaptain Krunch-class genius phone hacker still seems a biit too hardcore for him. And calling sequentially isn't just looking up numbers in a phone book, it's typing 111-111-1111 and then 111-111-1112, 1113, 1114, etc. A process virtually impossible without some type of automation unless you're a Flash-class speedster. So this is either extreme cartoon logic, or Not What Happened. And I'm voting on the latter.

Looking at the Endings Map ( https://pcy.ulyssis.be/undertale/endings.pdf from https://pcy.ulyssis.be/undertale/ ) If the player killed Mettaon and has a LOVE level over 12, Sans' ending dialog changes from "heya, is anyone there?" to ".. alright, i've got the number". So somehow, Sans does have Frisk's phone number, even though we never give it to him.

Caller ID might not work, but number ID does. When Papyrus interupts San's dialog "SANS!! WHO ARE YOU TALKING TO???" and Sans says "Nobody" Papyrus says "WAIT A SECOND... I RECOGNIZE THIS NUMBER!!!" So Papyrus at least knows which number called him, even if Frisk didn't specifically give it to him.

I think there's a high likelyhood that the phone Toriel gave to Frisk was actually Sans' old phone.

It would explain how Sans had the number.

And why the key to Sans' room was already on the keychain.

Even on the genocide route, when you're stuck with the original phone and don't get the upgrade from Alphys, your phone still has a keychain. When you get to New Home and the two keys there, it says "you took the key and put it on your phone's key chain" ( https://youtu.be/tGJeksEaV1Q?list=PLMBYlcH3smRzDtisspG0VIwJ0oZRakaIF&t=544 )