/**
 * Generic, country-agnostic readability formatter for E.164-ish phone strings
 * (e.g. `+381601234567` -> `+381 601234567`). Splits off the country calling
 * code using a static ITU code table and adds a single space after it; the
 * subscriber number itself is left ungrouped, since grouping it correctly
 * requires per-country number-plan knowledge (trunk codes, area codes, etc.)
 * that doesn't belong in a generic default — apply a `cell` callback for
 * locale-accurate national formatting. Values that don't start with `+` are
 * returned unchanged.
 */
export declare function formatPhoneCellValue(value: string): string;