spec checked
ITU-T Recommendation E.164 international public telecommunication numbering plan
Defines the international public telecommunication numbering plan and the 15-digit maximum international number length used by dialable E.164 phone-number storage and routing.
Pattern Decisions This Source Supports
| Pattern | Supported decision | Required contract | Claim note |
|---|---|---|---|
| Phone number entry | Choose phone number entry when the product genuinely needs a telephone route for calls, SMS messages, identity recovery, service contact, delivery coordination, support callbacks, or account verification. | Users can type, paste, autofill, edit, select, undo, and correct the phone value through native input behavior. | ITU E.164 supports international telephone numbering and the 15-digit maximum international number length. |
Evidence Role
This source is treated as spec evidence. Use it to validate the decision rules above, not as a visual style reference.
Publisher: International Telecommunication Union. Last checked: .