how to add a phone number?

No where to add a phone number on the app? Only see option to add emails.

The issue only says that the app offers email settings but no phone-number option; it names no file, platform, entry point, or test. First clarify which app and the expected phone-number behavior, then locate the account contact settings and identify an appropriate test. Done should include a usable way to add a phone number.

Written by the indexing model from the issue text.