Similar to an email mask, a phone number mask is a phone number that can forward texts and calls to your true phone number without revealing what your true number is to the person calling or texting you.
Como un masca de e-mail, un masca de numero de telephono es un numero de telephono que pote reexpedir messages de texto SMS e appellos a tu ver numero de telephono sin revelar tu ver numero al persona qui te appella o te scribe un SMS.