How to Put a Phone Extension in Your Android Contacts

I finally got around to looking up how to put a phone extension into Google Contacts or Nextcloud Contacts or any other contacts that Android is willing to use for dialing, without hiding it in a note or breaking autodial.

• Use a comma after the main number for “pause,” and it will dial the extension as soon as the other end picks up.
  1 234-555-6789, 1234
• Use a semicolon for “wait,” meaning that it’ll wait for a message to end first.
  1 234-555-6789; 1234

When editing the contact on your phone, you can find the buttons in the symbol keyboard that pops up when you tap “* #”.

And there you have it: It’s readable and it will work with the dialer!