Given a valid short number, determines whether it is carrier-specific (however, nothing is
implied about its validity). If it is important that the number is valid, then its validity
must first be checked using {@link isValidShortNumber} or
{@link #isValidShortNumberForRegion}.
public isCarrierSpecific ( |
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$number | the valid short number to check | |
return | boolean | whether the short number is carrier-specific (assuming the input was a valid short number). |