# BRD-103 — The support phone must be in E.164

> The brand support phone must be submitted in E.164: a leading plus, the country code, and digits with no separators.

- **Rule ID:** BRD-103
- **Layer:** Brand (`BRAND`)
- **Checks:** `brand.phone`
- **Severity:** BLOCKING — Breaking this rule gets the submission rejected outright.
- **When it bites:** Gates approval — get this wrong and registration is refused
- **How it is detected:** Deterministic (settled in code from the submitted values)
- **Fix type:** Fix the field — a better value in the form clears it
- **Required by:** TCR, AWS, Telnyx
- **Applies:** Applies to every 10DLC registration.
- **Canonical URL:** https://ekas.io/rules/10dlc/brand/brd-103/

## Why this rule exists

E.164 is the only form the registry parses unambiguously — a number with dashes or brackets is either rejected outright or silently truncated, and a truncated support number is worse than a missing one because nothing flags it. Forms that display a friendly format and submit what was displayed are the usual cause.

## How to fix it

Strip the spaces, dashes, dots and brackets, and prefix the country code with a plus. A US number becomes +1 followed by ten digits. Done when the value matches +[country code][digits] with nothing else in it.

## Example of a compliant value

```text
phone: +14155550134 — not 415-555-0134 and not (415) 555-0134
```